https://www.math.wisc.edu/wiki/api.php?action=feedcontributions&user=Spagnolie&feedformat=atomMath - User contributions [en]2019-06-17T19:10:51ZUser contributionsMediaWiki 1.28.3https://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17454Applied2019-05-16T22:00:56Z<p>Spagnolie: /* Current Graduate Students */</p>
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<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
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__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
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* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
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* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
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<br><br />
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== Workshops ==<br />
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* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
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* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
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[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
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[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
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[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
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[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
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[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
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[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
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<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
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<br><br />
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== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
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[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
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[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
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[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
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[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
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[https://www.math.wisc.edu/~pgera/ Prerna Gera:] (Buffalo, 2018) fluid-structure interactions<br />
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[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
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<br><br />
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== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
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[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
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[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[https://www.physics.wisc.edu/people/wilson-bennettlough Wilson Lough:] Student of Saverio Spagnolie.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!-- [http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
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<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2019] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (David Anderson, Timo Seppalainen, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Saverio Spagnolie)<br />
* Math 705: Mathematical Fluid Dynamics (Leslie Smith)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2020] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (TBA)<br />
* Math 704: Methods of Applied Mathematics II (TBA)<br />
* Math 715: Methods of Computational Math II (TBA)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
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* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17453Applied2019-05-16T21:59:55Z<p>Spagnolie: /* Postdoctoral fellows and researchers */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
<br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[https://www.math.wisc.edu/~pgera/ Prerna Gera:] (Buffalo, 2018) fluid-structure interactions<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[https://www.physics.wisc.edu/people/wilson-bennettlough Wilson Lough:] Student of Saverio Spagnolie.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2019] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (David Anderson, Timo Seppalainen, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Saverio Spagnolie)<br />
* Math 705: Mathematical Fluid Dynamics (Leslie Smith)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2020] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (TBA)<br />
* Math 704: Methods of Applied Mathematics II (TBA)<br />
* Math 715: Methods of Computational Math II (TBA)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17452Applied2019-05-16T21:59:31Z<p>Spagnolie: /* Postdoctoral fellows and researchers */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
<br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://www.math.wisc.edu/~pgera/ Prerna Gera:] (Buffalo, 2018) fluid-structure interactions<br />
<br />
<!-- [https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids --><br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[https://www.physics.wisc.edu/people/wilson-bennettlough Wilson Lough:] Student of Saverio Spagnolie.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2019] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (David Anderson, Timo Seppalainen, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Saverio Spagnolie)<br />
* Math 705: Mathematical Fluid Dynamics (Leslie Smith)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2020] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (TBA)<br />
* Math 704: Methods of Applied Mathematics II (TBA)<br />
* Math 715: Methods of Computational Math II (TBA)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17451Applied2019-05-16T21:59:20Z<p>Spagnolie: /* Postdoctoral fellows and researchers */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
<br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://www.math.wisc.edu/~pgera/ Prerna Gera:] (Buffalo, 2018) fluid-structure interactions<br />
<br />
<!-- [https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids --><br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[https://www.physics.wisc.edu/people/wilson-bennettlough Wilson Lough:] Student of Saverio Spagnolie.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2019] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (David Anderson, Timo Seppalainen, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Saverio Spagnolie)<br />
* Math 705: Mathematical Fluid Dynamics (Leslie Smith)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2020] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (TBA)<br />
* Math 704: Methods of Applied Mathematics II (TBA)<br />
* Math 715: Methods of Computational Math II (TBA)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17450Applied2019-05-16T21:58:03Z<p>Spagnolie: /* Current Graduate Students */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
<br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[https://www.physics.wisc.edu/people/wilson-bennettlough Wilson Lough:] Student of Saverio Spagnolie.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2019] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (David Anderson, Timo Seppalainen, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Saverio Spagnolie)<br />
* Math 705: Mathematical Fluid Dynamics (Leslie Smith)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2020] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (TBA)<br />
* Math 704: Methods of Applied Mathematics II (TBA)<br />
* Math 715: Methods of Computational Math II (TBA)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17449Applied2019-05-16T21:21:28Z<p>Spagnolie: /* Graduate course offerings */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
<br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2019] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (David Anderson, Timo Seppalainen, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Saverio Spagnolie)<br />
* Math 705: Mathematical Fluid Dynamics (Leslie Smith)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2020] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (TBA)<br />
* Math 704: Methods of Applied Mathematics II (TBA)<br />
* Math 715: Methods of Computational Math II (TBA)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17448Applied2019-05-16T21:20:22Z<p>Spagnolie: /* Graduate course offerings */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
<br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2019] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (David Anderson, Timo Seppalainen, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Saverio Spagnolie)<br />
* Math 705: Mathematical Fluid Dynamics (Leslie Smith)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics: (Topic and instructor TBA)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2020] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (TBA)<br />
* Math 704: Methods of Applied Mathematics II (TBA)<br />
* Math 715: Methods of Computational Math II (TBA)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=17433Applied/Physical Applied Math2019-05-08T14:50:56Z<p>Spagnolie: /* Spring 2019 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2019 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan. 24<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Jan. 31<br />
|Jean-Luc<br />
|Organizational meeting; J-LT speaks on Vortices in a channel<br />
|-<br />
|Feb. 7<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Feb. 14<br />
|Yu<br />
|Suppression of phase separation by mixing<br />
|-<br />
|Feb. 21<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Feb. 28<br />
|Bryan<br />
|Riffles shuffles and mixing<br />
|-<br />
|Mar. 7<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Mar. 14<br />
|Hongfei<br />
|[https://www.springer.com/us/book/9781441916044 Diffusion across potential barriers]<br />
|-<br />
|Mar. 21<br />
|<br />
|''Spring Break''<br />
|-<br />
|Mar. 28<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Apr. 4<br />
|Ruojun<br />
|Internal diffusion-limited aggregation and rotor-router walks with drift<br />
|-<br />
|Apr. 11<br />
|Jiajia<br />
|[https://doi.org/10.1063/1.1675038 Freed, Wiener Integrals and Models of Stiff Polymer Chains]<br />
|-<br />
|Apr. 18<br />
|Wangping<br />
|Entanglement of frictionless strings<br />
|-<br />
|Apr. 25<br />
|John<br />
|pseudo-Anosov homeomorphisms with large entropy<br />
|-<br />
|May 2<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|May 9<br />
|Saverio<br />
|Internal capillary origami (see [https://journals.aps.org/pra/abstract/10.1103/PhysRevA.44.1182 Seifert et al, Shape transformations of vesicles] and [https://www.annualreviews.org/doi/full/10.1146/annurev-fluid-122316-050130?casa_token=lYj2Hmpn0fEAAAAA:269tjv-n7Odyzgam7PniTi5WmNPjP0qVrO7qxV0a8Ox_Tl4fNsawlxTves-ev7vI_h9Sx_0jKfwK Bico et al., Elastocapillarity (Review article)])<br />
|-<br />
|}<br />
<br />
== Fall 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan. 31<br />
|Jean-Luc<br />
|Organizational meeting; J-LT speaks on Aldous and Diaconis, [https://www.ams.org/journals/bull/1999-36-04/S0273-0979-99-00796-X/ Longest increasing subsequences: from patience sorting to the Baik-Deift-Johansson theorem]<br />
|-<br />
|Sep. 13<br />
|Son<br />
|[https://arxiv.org/abs/1808.06129 Rate of convergence for periodic homogenization of convex Hamilton-Jacobi equations in one dimension]<br />
|-<br />
|Sep. 20<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Sep. 27<br />
|[https://www.math.cmu.edu/~gautam/sj/index.html Gautam Iyer] (CMU)<br />
|[https://arxiv.org/abs/1806.03699 Dissipation enhancement by mixing]<br />
|-<br />
|Oct. 4<br />
|Gage<br />
|[https://www.dropbox.com/s/tjc4v03cwgzeppm/Group_talk_ab___notes.pdf Escape rates of random walks on free groups]<br />
|-<br />
|Oct. 11<br />
|<i>cancelled</i><br />
|<br />
|-<br />
|Oct. 18<br />
|Yu Feng<br />
|Relaxation enhancement for Advective Cahn-Hilliard (practice for specialty)<br />
|-<br />
|Oct. 25<br />
|Yu's specialty <b>2-3pm, B139</b><br />
|Relaxation enhancement for Advective Cahn-Hilliard<br />
|-<br />
|Nov. 1<br />
|Wil<br />
|Powers, [https://journals.aps.org/rmp/abstract/10.1103/RevModPhys.82.1607; Dynamics of filaments and membranes in a viscous fluid]; Guven et al. [http://iopscience.iop.org/article/10.1088/1751-8113/47/35/355201/pdf Environmental bias and elastic curves on surfaces]<br />
|-<br />
|Nov. 8<br />
|Tom<br />
|[https://arxiv.org/abs/1809.01190 Mixing by jellyfish]<br />
|-<br />
|Nov. 15<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Nov. 22<br />
|<br />
|''Thanksgiving Break''<br />
|-<br />
|Nov. 29<br />
|Chris<br />
|Sun et al., [https://www.sciencedirect.com/science/article/pii/S0167278911001588 A mathematical model for the synchronization of cows]<br />
|-<br />
|Dec. 6<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|'''Dec. 12, B239'''<br />
|Jean-Luc<br />
|Cooking food by flipping<br />
|-<br />
|Dec. 13<br />
|<br />
|''Faculty Meeting''<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Spring2018|Spring 2018]]<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=17432Applied/Physical Applied Math2019-05-08T14:50:45Z<p>Spagnolie: /* Spring 2019 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2019 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan. 24<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Jan. 31<br />
|Jean-Luc<br />
|Organizational meeting; J-LT speaks on Vortices in a channel<br />
|-<br />
|Feb. 7<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Feb. 14<br />
|Yu<br />
|Suppression of phase separation by mixing<br />
|-<br />
|Feb. 21<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Feb. 28<br />
|Bryan<br />
|Riffles shuffles and mixing<br />
|-<br />
|Mar. 7<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Mar. 14<br />
|Hongfei<br />
|[https://www.springer.com/us/book/9781441916044 Diffusion across potential barriers]<br />
|-<br />
|Mar. 21<br />
|<br />
|''Spring Break''<br />
|-<br />
|Mar. 28<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Apr. 4<br />
|Ruojun<br />
|Internal diffusion-limited aggregation and rotor-router walks with drift<br />
|-<br />
|Apr. 11<br />
|Jiajia<br />
|[https://doi.org/10.1063/1.1675038 Freed, Wiener Integrals and Models of Stiff Polymer Chains]<br />
|-<br />
|Apr. 18<br />
|Wangping<br />
|Entanglement of frictionless strings<br />
|-<br />
|Apr. 25<br />
|John<br />
|pseudo-Anosov homeomorphisms with large entropy<br />
|-<br />
|May 2<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|May 9<br />
|Saverio<br />
|Internal capillary origami (see [https://journals.aps.org/pra/abstract/10.1103/PhysRevA.44.1182 Seifert et al, Shape transformations of vesicles] and [https://www.annualreviews.org/doi/full/10.1146/annurev-fluid-122316-050130?casa_token=lYj2Hmpn0fEAAAAA:269tjv-n7Odyzgam7PniTi5WmNPjP0qVrO7qxV0a8Ox_Tl4fNsawlxTves-ev7vI_h9Sx_0jKfwK Bico et al., Elastocapillarity (Review article)]<br />
|-<br />
|}<br />
<br />
== Fall 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan. 31<br />
|Jean-Luc<br />
|Organizational meeting; J-LT speaks on Aldous and Diaconis, [https://www.ams.org/journals/bull/1999-36-04/S0273-0979-99-00796-X/ Longest increasing subsequences: from patience sorting to the Baik-Deift-Johansson theorem]<br />
|-<br />
|Sep. 13<br />
|Son<br />
|[https://arxiv.org/abs/1808.06129 Rate of convergence for periodic homogenization of convex Hamilton-Jacobi equations in one dimension]<br />
|-<br />
|Sep. 20<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Sep. 27<br />
|[https://www.math.cmu.edu/~gautam/sj/index.html Gautam Iyer] (CMU)<br />
|[https://arxiv.org/abs/1806.03699 Dissipation enhancement by mixing]<br />
|-<br />
|Oct. 4<br />
|Gage<br />
|[https://www.dropbox.com/s/tjc4v03cwgzeppm/Group_talk_ab___notes.pdf Escape rates of random walks on free groups]<br />
|-<br />
|Oct. 11<br />
|<i>cancelled</i><br />
|<br />
|-<br />
|Oct. 18<br />
|Yu Feng<br />
|Relaxation enhancement for Advective Cahn-Hilliard (practice for specialty)<br />
|-<br />
|Oct. 25<br />
|Yu's specialty <b>2-3pm, B139</b><br />
|Relaxation enhancement for Advective Cahn-Hilliard<br />
|-<br />
|Nov. 1<br />
|Wil<br />
|Powers, [https://journals.aps.org/rmp/abstract/10.1103/RevModPhys.82.1607; Dynamics of filaments and membranes in a viscous fluid]; Guven et al. [http://iopscience.iop.org/article/10.1088/1751-8113/47/35/355201/pdf Environmental bias and elastic curves on surfaces]<br />
|-<br />
|Nov. 8<br />
|Tom<br />
|[https://arxiv.org/abs/1809.01190 Mixing by jellyfish]<br />
|-<br />
|Nov. 15<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|Nov. 22<br />
|<br />
|''Thanksgiving Break''<br />
|-<br />
|Nov. 29<br />
|Chris<br />
|Sun et al., [https://www.sciencedirect.com/science/article/pii/S0167278911001588 A mathematical model for the synchronization of cows]<br />
|-<br />
|Dec. 6<br />
|<br />
|''Faculty Meeting''<br />
|-<br />
|'''Dec. 12, B239'''<br />
|Jean-Luc<br />
|Cooking food by flipping<br />
|-<br />
|Dec. 13<br />
|<br />
|''Faculty Meeting''<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Spring2018|Spring 2018]]<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17180Applied2019-03-18T21:15:56Z<p>Spagnolie: /* Tenured and tenure-track faculty */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<!-- [http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics. --><br />
<!-- [http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology. --><br />
<br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=17179Applied2019-03-18T21:14:24Z<p>Spagnolie: /* News and opportunities */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Will Mitchell''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Macalester College to begin in Fall 2019. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie) has accepted a faculty position at Shanghai Jiao Tong University to begin in Fall 2018. <!-- Updated by saverio 2019-03-18 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=17102Applied/ACMS2019-03-04T16:15:14Z<p>Spagnolie: /* Spring 2019 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~qinli/ Qin Li], [http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
<br />
== Spring 2019 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 25<br />
|[http://pages.cs.wisc.edu/~jerryzhu/ Jerry Zhu] (UW-Madison, CS)<br />
|''[[Applied/ACMS/absS19#Jerry Zhu (UW-Madison, CS)|Machine Teaching: Optimal Control of Machine Learning]]''<br />
| host<br />
|-<br />
| Feb 1<br />
|[https://www.math.wisc.edu/~deshpande/ Abhishek Deshpande] (UW-Madison)<br />
|''[[Applied/ACMS/absS19#Abhishek Deshpande (UW-Madison)|Switches in chemical and biological networks]]''<br />
| host<br />
|-<br />
| Feb 8<br />
|[https://www.math.wisc.edu/~cntzou/ Chung-Nan Tzou] (UW-Madison)<br />
|''[[Applied/ACMS/absS19#Chung-Nan Tzou (UW-Madison)|Fluid Models with Sharp Interfaces - Clouds and Plumes]]''<br />
| host<br />
|-<br />
| Feb 15<br />
|[https://sites.google.com/site/amylouisecochran/ Amy Cochran] (UW-Madison, Math and Medical Informatics)<br />
|''[[Applied/ACMS/absS19#Amy Cochran (UW-Madison, Math and Medical Informatics)|A model of online latent state learning]]''<br />
| host<br />
|-<br />
| Feb 22<br />
|[https://www.ma.utexas.edu/users/ren/index.html Kui Ren] (UT-Austin and Columbia)<br />
|''[[Applied/ACMS/absS19#Kui Ren (UT-Austin and Columbia)|Uncertainty Characterization in Model-Based Inverse and Imaging Problems]]''<br />
| host<br />
|-<br />
| Mar 1<br />
|[https://www.medphysics.wisc.edu/directory/guanghong.php Guanghong Chen] (UW-Madison, Medical Physics)<br />
|''[[Applied/ACMS/absS19#Guanghong Chen (UW-Madison, Medical Physics)|canceled]]''<br />
| Li<br />
|-<br />
| Mar 8<br />
|[http://www.nicolasgarciat.com/ Nicolas Garcia Trillos] (UW-Madison, Statistics)<br />
|''[[Applied/ACMS/absS19#Nicolas Garcia Trillos (UW-Madison, Statistics)|Large sample asymptotics of spectra of Laplacians and semilinear elliptic PDEs on random geometric graphs]]''<br />
| host<br />
|-<br />
| Mar 15<br />
|[http://www.sfu.ca/~weirans/ Weiran Sun] (Simon Fraser)<br />
|''[[Applied/ACMS/absS19#Weiran Sun (Simon Fraser)|Aggregation equations over bounded domains]]''<br />
| host<br />
|-<br />
| Mar 22<br />
|[spring recess] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Mar 29<br />
|[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault] (UW-Madison, Math)<br />
|''[[Applied/ACMS/absS19#Jean-Luc Thiffeault (UW-Madison, Math)|The mathematics of burger flipping]]''<br />
| self-hosted<br />
|-<br />
| Apr 5<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Apr 12<br />
|[https://sites.tufts.edu/hening/ Alexandru Hening] (Tufts University)<br />
|''[[Applied/ACMS/absS19#Alexandru Hening (Tufts University)|title TBA]]''<br />
| Craciun<br />
|-<br />
| Apr 19<br />
|[https://scholar.google.com/citations?user=85z4Cl4AAAAJ&hl=en Mustafa Mohamad] (NYU/Courant)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| Chen<br />
|-<br />
| Apr 26<br />
|[http://ins.sjtu.edu.cn/people/leili/ Lei Li] (Shanghai Jiao Tong University)<br />
|''[[Applied/ACMS/absS19#Lei Li (Shanghai Jiao Tong University)|The Random Batch Method and its application to sampling]]''<br />
| Spagnolie<br />
|-<br />
| May 3<br />
|[https://www.math.ucla.edu/~jiajun/ Jiajun Tong] (UCLA)<br />
|''[[Applied/ACMS/absS19#Jiajun Tong (UCLA)|title]]''<br />
| Chen<br />
|}<br />
<br />
== Future semesters ==<br />
<br />
*[[Applied/ACMS/Spring2019|Spring 2019]]<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2018|Fall 2018]]<br />
*[[Applied/ACMS/Spring2018|Spring 2018]]<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS19&diff=17101Applied/ACMS/absS192019-03-04T16:14:57Z<p>Spagnolie: /* ACMS Abstracts: Spring 2019 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2019 =<br />
<br />
=== Jerry Zhu (University of Wisconsin-Madison, CS) ===<br />
''Machine Teaching: Optimal Control of Machine Learning''<br />
<br />
As machine learning is increasingly adopted in science and engineering, it becomes important to take a higher level view where the machine learner is only one of the agents in a multi-agent system. Other agents may have an incentive to control the learner. As examples, in adversarial machine learning an attacker can poison the training data to manipulate the model the learner learns; in education a teacher can optimize the curriculum to enhance student (modeled as a computational learning algorithm) performance. Machine teaching is optimal control theory applied to machine learning: the plant is the learner, the state is the learned model, and the control is the training data. In this talk I survey the mathematical foundation of machine teaching and the new research frontiers opened up by this confluence of machine learning and control theory.<br />
<br />
=== Abhishek Deshpande (UW-Madison, math) ===<br />
''Switches in chemical and biological networks''<br />
<br />
Switches are ubiquitous in both chemical and biological circuits. We explore the behaviour of autocatalytic switches in the context of the persistence conjecture. We show that networks without autocatalytic switches are persistent. The notion of a “critical siphon” forms the connecting link between autocatalysis and persistence. The talk will expand upon this connection.<br />
<br />
<br />
Swtiches are also relevant from a biological perspective. We show that catalytic switches help in reducing retroactivity - the back effect on the upstream system when connected to the downstream system. In addition, for certain catalytic networks like the push-pull motif, high rates of energy consumption are not required to attenuate retroactivity. One can accomplish this by reducing the coupling to the push-pull motif. However, this reduction in coupling is not robust to cross-talk caused by leak reactions.<br />
<br />
<br />
References:<br />
1) https://arxiv.org/abs/1309.3957<br />
2) https://arxiv.org/abs/1708.01792<br />
<br />
=== Chung-Nan Tzou (UW-Madison, Math)===<br />
''Fluid Models with Sharp Interfaces - Clouds and Plumes''<br />
<br />
In this talk, I will discuss two models describing the interaction of fluids across sharp interfaces. The first model is a discontinuous Poisson equation where the interfacial discontinuity arises from phase changes such as the interior and exterior of a cloud. A simple second-order numerical scheme aiming at solving this type of equations is proposed and tested. The second model is a simplified system of ODEs describing the mixing of jets and plumes with the ambient fluid. With the ambient density profile being sharply stratified, we established a criterion for a plume to be trapped underwater or rise to the top surface and also showed that this profile is the optimal mixer. This theory has been applied to the Gulf of Mexico oil spill incident and also compared with the data we collected through hands-on experiments in the fluids lab.<br />
<br />
=== Amy Cochran (UW-Madison, Math and Medical Informatics) ===<br />
''A model of online latent state learning''<br />
<br />
Researchers are increasingly interested in how humans perform a structured form of learning known as latent-state inferences. Latent state inferences refer to someone's ability to weigh competing hypotheses about one’s environment. Critically, this type of learning can help explain behavior and neural activity important to cognitive neuroscience and psychiatry. In this talk, I will first present a model of latent state learning that uses online, or recursive, updates. I will also discuss open questions related to this topic in hopes of generating discussion. Ultimately, I would like to engage students interested in the emerging area of computational psychiatry, as I will be joining the math department as an assistant professor in the Fall.<br />
<br />
=== Kui Ren (Columbia Applied math and UT-Austin Mathematics) ===<br />
''Uncertainty Characterization in Model-Based Inverse and Imaging Problems''<br />
<br />
In model-based inverse and imaging problems, it is often the case that only a portion of the relevant physical quantities in the model can be reconstructed/imaged. The rest of the model parameters are assumed to be known. In practice, these parameters are often only known partially (up to a certain accuracy). It is therefore important to characterize the dependence of the inversion/imaging results on the accuracy of these parameters. This is an uncertainty quantification problem that is challenging due to the fact that both the map from the uncertainty parameters (the ones we assumed partially known) to the measured data and the map from the measured data to the quantities to be imaged are difficult to analyze. In this talk, we review some recent computaitonal and mathematical results on such uncertainty characterization problems in nonlinear inverse problems for PDEs.<br />
<br />
=== Nicolas Garcia Trillos (UW-Madison, statistics) ===<br />
''Large sample asymptotics of spectra of Laplacians and semilinear elliptic PDEs on random geometric graphs''<br />
<br />
Given a data set $\mathcal{X}=\{x_1, \dots, x_n\}$ and a weighted graph structure $\Gamma= (\mathcal{X},W)$ on $\mathcal{X}$, graph based methods for learning use analytical notions like graph Laplacians, graph cuts, and Sobolev semi-norms to formulate optimization problems whose solutions serve as sensible approaches to machine learning tasks. When the data set consists of samples from a distribution supported on a manifold (or at least approximately so), and the weights depend inversely on the distance between the points, a natural question to study concerns the behavior of those optimization problems as the number of samples goes to infinity. In this talk I will focus on optimization problems closely connected to clustering and supervised regression that involve the graph Laplacian. For clustering, the spectrum of the graph Laplacian is the fundamental object used in the popular spectral clustering algorithm. For regression, the solution to a semilinear elliptic PDE on the graph provides the minimizer of an energy balancing regularization and data fidelity, a sensible object to use in non-parametric regression. <br />
Using tools from optimal transport, calculus of variations, and analysis of PDEs, I will discuss a series of results establishing the asymptotic consistency (with rates of convergence) of many of these analytical objects, as well as provide some perspectives on future research directions.<br />
<br />
=== Weiran Sun (Simon Fraser University) ===<br />
''Aggregation equations over bounded domains''<br />
<br />
Numerical computations have shown that due to the boundary effect, solutions of aggregation equations can evolve into non-energy minimizing states. Meanwhile, adding a small noise seems to bypass such non- energy minimizers. This motivates our study of aggregation equations over bounded domains. In this talk we will use basic probabilistic methods to show well-posedness and mean-field limits of aggregation equations with singular potentials (such as the Newtonian potential). We will also show the zero-diffusion limit of aggregations equations over bounded domains and obtain a convergence rate that is consistent with what has been observed in numerical simulations. This is joint work with Razvan Fetecau, Hui Huang, and Daniel Messenger.<br />
<br />
=== Jean-Luc Thiffeault (UW-Madison, Math) ===<br />
<br />
''The mathematics of burger flipping''<br />
<br />
Ever since the dawn of time people have (literally) asked the question<br />
&mdash; what is the most effective way to grill food? Timing is<br />
everything, since only one surface is exposed to heat at a given time.<br />
Should we flip only once, or many times? I will show a simple model<br />
of cooking by flipping, and some interesting mathematics will emerge.<br />
The rate of cooking depends on the spectrum of a linear operator, and<br />
on the fixed point of a map. If the system is symmetric, the rate of<br />
cooking becomes independent of the sequence of flips, as long as the<br />
last point to be cooked is the midpoint. This toy problem has some<br />
characteristics reminiscent of more realistic scenarios, such as<br />
thermal convection and heat exchangers.<br />
<br />
=== Lei Li (Shanghai Jiao Tong University) ===<br />
<br />
''The Random Batch Method and its application to sampling''<br />
<br />
First order interacting particle systems are ubiquitous. For example, they can be viewed as the over-damped Langevin equations. We first introduce a random algorithm, called the Random Batch Method (RBM), for simulating first order systems. The algorithms are motivated by the mini-batch idea in machine learning and statistics. Under some special conditions, we show the convergence of RBMs for the first marginal distribution under the Wasserstein distance. Compared with traditional tree code and fast multipole expansion algorithms, RBM works for kernels that do not necessarily decay. We then apply the RBM to Stein Variational Gradient Descent, a recent algorithm in statistics and machine learning, to obtain an efficient sampling method. This talk is based on joint work with Shi Jin (Shanghai Jiao Tong University), Jian-Guo Liu (Duke University), Jianfeng Lu (Duke University) and Zibu Liu (Duke University).</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=17100Applied/ACMS2019-03-04T16:12:59Z<p>Spagnolie: /* Spring 2019 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~qinli/ Qin Li], [http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
<br />
== Spring 2019 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 25<br />
|[http://pages.cs.wisc.edu/~jerryzhu/ Jerry Zhu] (UW-Madison, CS)<br />
|''[[Applied/ACMS/absS19#Jerry Zhu (UW-Madison, CS)|Machine Teaching: Optimal Control of Machine Learning]]''<br />
| host<br />
|-<br />
| Feb 1<br />
|[https://www.math.wisc.edu/~deshpande/ Abhishek Deshpande] (UW-Madison)<br />
|''[[Applied/ACMS/absS19#Abhishek Deshpande (UW-Madison)|Switches in chemical and biological networks]]''<br />
| host<br />
|-<br />
| Feb 8<br />
|[https://www.math.wisc.edu/~cntzou/ Chung-Nan Tzou] (UW-Madison)<br />
|''[[Applied/ACMS/absS19#Chung-Nan Tzou (UW-Madison)|Fluid Models with Sharp Interfaces - Clouds and Plumes]]''<br />
| host<br />
|-<br />
| Feb 15<br />
|[https://sites.google.com/site/amylouisecochran/ Amy Cochran] (UW-Madison, Math and Medical Informatics)<br />
|''[[Applied/ACMS/absS19#Amy Cochran (UW-Madison, Math and Medical Informatics)|A model of online latent state learning]]''<br />
| host<br />
|-<br />
| Feb 22<br />
|[https://www.ma.utexas.edu/users/ren/index.html Kui Ren] (UT-Austin and Columbia)<br />
|''[[Applied/ACMS/absS19#Kui Ren (UT-Austin and Columbia)|Uncertainty Characterization in Model-Based Inverse and Imaging Problems]]''<br />
| host<br />
|-<br />
| Mar 1<br />
|[https://www.medphysics.wisc.edu/directory/guanghong.php Guanghong Chen] (UW-Madison, Medical Physics)<br />
|''[[Applied/ACMS/absS19#Guanghong Chen (UW-Madison, Medical Physics)|canceled]]''<br />
| Li<br />
|-<br />
| Mar 8<br />
|[http://www.nicolasgarciat.com/ Nicolas Garcia Trillos] (UW-Madison, Statistics)<br />
|''[[Applied/ACMS/absS19#Nicolas Garcia Trillos (UW-Madison, Statistics)|Large sample asymptotics of spectra of Laplacians and semilinear elliptic PDEs on random geometric graphs]]''<br />
| host<br />
|-<br />
| Mar 15<br />
|[http://www.sfu.ca/~weirans/ Weiran Sun] (Simon Fraser)<br />
|''[[Applied/ACMS/absS19#Weiran Sun (Simon Fraser)|Aggregation equations over bounded domains]]''<br />
| host<br />
|-<br />
| Mar 22<br />
|[spring recess] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Mar 29<br />
|[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault] (UW-Madison, Math)<br />
|''[[Applied/ACMS/absS19#Jean-Luc Thiffeault (UW-Madison, Math)|The mathematics of burger flipping]]''<br />
| self-hosted<br />
|-<br />
| Apr 5<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Apr 12<br />
|[https://sites.tufts.edu/hening/ Alexandru Hening] (Tufts University)<br />
|''[[Applied/ACMS/absS19#Alexandru Hening (Tufts University)|title TBA]]''<br />
| Craciun<br />
|-<br />
| Apr 19<br />
|[https://scholar.google.com/citations?user=85z4Cl4AAAAJ&hl=en Mustafa Mohamad] (NYU/Courant)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| Chen<br />
|-<br />
| Apr 26<br />
|[http://ins.sjtu.edu.cn/people/leili/ Lei Li] (Shanghai Jiao Tong University)<br />
|''[[Applied/ACMS/absS19#Lei Li (Shanghai Jiao Tong University)|Random Batch Method and its application to sampling]]''<br />
| Spagnolie<br />
|-<br />
| May 3<br />
|[https://www.math.ucla.edu/~jiajun/ Jiajun Tong] (UCLA)<br />
|''[[Applied/ACMS/absS19#Jiajun Tong (UCLA)|title]]''<br />
| Chen<br />
|}<br />
<br />
== Future semesters ==<br />
<br />
*[[Applied/ACMS/Spring2019|Spring 2019]]<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2018|Fall 2018]]<br />
*[[Applied/ACMS/Spring2018|Spring 2018]]<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=17093Applied/ACMS2019-03-03T17:34:13Z<p>Spagnolie: /* Applied and Computational Mathematics Seminar */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~qinli/ Qin Li], [http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
<br />
== Spring 2019 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 25<br />
|[http://pages.cs.wisc.edu/~jerryzhu/ Jerry Zhu] (UW-Madison, CS)<br />
|''[[Applied/ACMS/absS19#Jerry Zhu (UW-Madison, CS)|Machine Teaching: Optimal Control of Machine Learning]]''<br />
| host<br />
|-<br />
| Feb 1<br />
|[https://www.math.wisc.edu/~deshpande/ Abhishek Deshpande] (UW-Madison)<br />
|''[[Applied/ACMS/absS19#Abhishek Deshpande (UW-Madison)|Switches in chemical and biological networks]]''<br />
| host<br />
|-<br />
| Feb 8<br />
|[https://www.math.wisc.edu/~cntzou/ Chung-Nan Tzou] (UW-Madison)<br />
|''[[Applied/ACMS/absS19#Chung-Nan Tzou (UW-Madison)|Fluid Models with Sharp Interfaces - Clouds and Plumes]]''<br />
| host<br />
|-<br />
| Feb 15<br />
|[https://sites.google.com/site/amylouisecochran/ Amy Cochran] (UW-Madison, Math and Medical Informatics)<br />
|''[[Applied/ACMS/absS19#Amy Cochran (UW-Madison, Math and Medical Informatics)|A model of online latent state learning]]''<br />
| host<br />
|-<br />
| Feb 22<br />
|[https://www.ma.utexas.edu/users/ren/index.html Kui Ren] (UT-Austin and Columbia)<br />
|''[[Applied/ACMS/absS19#Kui Ren (UT-Austin and Columbia)|Uncertainty Characterization in Model-Based Inverse and Imaging Problems]]''<br />
| host<br />
|-<br />
| Mar 1<br />
|[https://www.medphysics.wisc.edu/directory/guanghong.php Guanghong Chen] (UW-Madison, Medical Physics)<br />
|''[[Applied/ACMS/absS19#Guanghong Chen (UW-Madison, Medical Physics)|canceled]]''<br />
| Li<br />
|-<br />
| Mar 8<br />
|[http://www.nicolasgarciat.com/ Nicolas Garcia Trillos] (UW-Madison, Statistics)<br />
|''[[Applied/ACMS/absS19#Nicolas Garcia Trillos (UW-Madison, Statistics)|Large sample asymptotics of spectra of Laplacians and semilinear elliptic PDEs on random geometric graphs]]''<br />
| host<br />
|-<br />
| Mar 15<br />
|[http://www.sfu.ca/~weirans/ Weiran Sun] (Simon Fraser)<br />
|''[[Applied/ACMS/absS19#Weiran Sun (Simon Fraser)|Aggregation equations over bounded domains]]''<br />
| host<br />
|-<br />
| Mar 22<br />
|[spring recess] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Mar 29<br />
|[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault] (UW-Madison, Math)<br />
|''[[Applied/ACMS/absS19#Jean-Luc Thiffeault (UW-Madison, Math)|The mathematics of burger flipping]]''<br />
| self-hosted<br />
|-<br />
| Apr 5<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Apr 12<br />
|[https://sites.tufts.edu/hening/ Alexandru Hening] (Tufts University)<br />
|''[[Applied/ACMS/absS19#Alexandru Hening (Tufts University)|title TBA]]''<br />
| Craciun<br />
|-<br />
| Apr 19<br />
|[https://scholar.google.com/citations?user=85z4Cl4AAAAJ&hl=en Mustafa Mohamad] (NYU/Courant)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| Chen<br />
|-<br />
| Apr 26<br />
|[http://ins.sjtu.edu.cn/people/leili/ Lei Li] (Shanghai Jiao Tong University)<br />
|''[[Applied/ACMS/absS19#Lei Li (Shanghai Jiao Tong University)|TBA]]''<br />
| Spagnolie<br />
|-<br />
| May 3<br />
|[https://www.math.ucla.edu/~jiajun/ Jiajun Tong] (UCLA)<br />
|''[[Applied/ACMS/absS19#Jiajun Tong (UCLA)|title]]''<br />
| Chen<br />
|}<br />
<br />
== Future semesters ==<br />
<br />
*[[Applied/ACMS/Spring2019|Spring 2019]]<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2018|Fall 2018]]<br />
*[[Applied/ACMS/Spring2018|Spring 2018]]<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/Spring2019&diff=16534Applied/ACMS/Spring20192018-12-06T03:00:05Z<p>Spagnolie: </p>
<hr />
<div>== Spring 2019 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 25<br />
|[http://pages.cs.wisc.edu/~jerryzhu/ Jerry Zhu] (UW-Madison, CS)<br />
|''[[Applied/ACMS/absS19#Jerry Zhu (UW-Madison, CS)|title]]''<br />
| host<br />
|-<br />
| Feb 1<br />
|[https://www.math.wisc.edu/~cntzou/ Chung-Nan Tzou] (UW-Madison)<br />
|''[[Applied/ACMS/absS19#Chung-Nan Tzou (UW-Madison)|title]]''<br />
| host<br />
|-<br />
| Feb 8<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Feb 15<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Feb 22<br />
|[https://www.ma.utexas.edu/users/ren/index.html Kui Ren] (UT-Austin and Columbia)<br />
|''[[Applied/ACMS/absS19#Kui Ren (UT-Austin and Columbia)|title]]''<br />
| host<br />
|-<br />
| Mar 1<br />
|[https://www.medphysics.wisc.edu/directory/guanghong.php Guanghong Chen] (UW-Madison, Medical Physics)<br />
|''[[Applied/ACMS/absS19#Guanghong Chen (UW-Madison, Medical Physics)|title]]''<br />
| Li<br />
|-<br />
| Mar 8<br />
|[http://www.nicolasgarciat.com/ Nicolas Garcia Trillos] (UW-Madison, Statistics)<br />
|''[[Applied/ACMS/absS19#Nicolas Garcia Trillos (UW-Madison, Statistics)|title]]''<br />
| host<br />
|-<br />
| Mar 15<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Mar 22<br />
|[spring recess] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Mar 29<br />
|[https://math.berkeley.edu/~linlin/ Lin Lin] (UC-Berkeley)<br />
|''[[Applied/ACMS/absS19#Lin Lin (UC-Berkeley)|title]]''<br />
| host<br />
|-<br />
| Apr 5<br />
|[https://scholar.google.com/citations?user=85z4Cl4AAAAJ&hl=en Mustafa Mohamad] (NYU/Courant)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| Chen<br />
|-<br />
| Apr 12<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Apr 19<br />
|[website TBA] (Institute)<br />
|''[[Applied/ACMS/absS19#Name (Institute)|title]]''<br />
| host<br />
|-<br />
| Apr 26<br />
|[http://ins.sjtu.edu.cn/people/leili/ Lei Li] (Shanghai Jiao Tong University)<br />
|''[[Applied/ACMS/absS19#Lei Li (Shanghai Jiao Tong University)|TBA]]''<br />
| Spagnolie<br />
|-<br />
| May 3<br />
|[https://www.math.ucla.edu/~jiajun/ Jiajun Tong] (UCLA)<br />
|''[[Applied/ACMS/absS19#Jiajun Tong (UCLA)|title]]''<br />
| Chen<br />
|-</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15391Applied/ACMS/absS182018-04-11T01:21:14Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Seung-Yeal Ha (Seoul National University) ===<br />
<br />
''Synchronization of Kuramoto models and its generalized models''<br />
<br />
Abstract: Collective synchronization of weakly coupled oscillators is ubiquitous in many classical and quantum oscillatory systems in our nature, e.g., flashing of fireflies, heart beating of pacemaker cells, array of Josephson junctions etc. In this talk, we will discuss how complete synchronization can emerge in the Kuramoto model in a large coupling regime, and discuss several multi-dimensional extensions of the Kuramoto model to matrix groups, and we also briefly discuss the latest work on the local sensitivity analysis for the particle and kinetic Kuramoto model. The UQ work is a joint work with Shi Jin and Jinwook Jung (SNU).<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Alexander Morozov (U Edinburgh) ===<br />
<br />
''Collective behavior of microswimmer suspensions''<br />
<br />
Recent years witnessed a significant interest in physical, biological and engineering properties of self-propelled particles, such as bacteria or synthetic microswimmers. The main distinction of this 'active matter' from its passive counterpart is the ability to extract energy from the environment (consume food) and convert it into directed motion. One of the most striking consequences of this distinction is the appearance of collective motion in self-propelled particles suspended in a fluid observed in recent experiments and simulations: at low densities particles move around in an uncorrelated fashion, while at higher densities they organize into jets and vortices comprising many individual swimmers. Although this problem received significant attention in recent years, the precise origin of the transition is poorly understood.<br />
<br />
In this talk I will present a numerical method based on a Lattice-Boltzmann algorithm to simulate hydrodynamic interactions between a large number of model swimmers (order 10^5), represented by extended force dipoles. Using this method we simulate the transition to large-scale structures in dilute suspensions of self-propelled particles and show that, even well below the transition, swimmers move in a correlated fashion that cannot be described by a mean-field approach. We develop a novel kinetic theory that captures these correlations and is non-perturbative in the swimmer density. To provide an experimentally accessible measure of correlations, we calculate the diffusivity of passive tracers and reveal its non-trivial density dependence. The theory is in quantitative agreement with the Lattice-Boltzmann simulations and captures the asymmetry between pusher and puller swimmers below the transition to turbulence. Finally, we discuss our recent attempts to understand the nature of the ‘turbulent’ state.<br />
<br />
=== David Salac (SUNY Buffalo) ===<br />
<br />
''Three-dimensional multicomponent vesicles: methods and influence of material properties''<br />
<br />
Recent work has demonstrated the interesting dynamics possible when considering multicomponent vesicles. Up to now, the dynamics of two dimensional vesicles have been studied. In this work, the dynamics of fully three-dimensional, multicomponent vesicles will be investigated. Building upon a volume and surface area conserving Navier-Stokes projection method, the appropriate forcing terms are derived from the energy of a multicomponent membrane. The evolution of the surface components is done via a conserving, surface Cahn-Hilliard model. The results show a rich variety of dynamics, which strongly depend on the material properties of the underlying lipid species.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15390Applied/ACMS/absS182018-04-11T01:20:22Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Seung-Yeal Ha (Seoul National University) ===<br />
<br />
''Synchronization of Kuramoto models and its generalized models''<br />
<br />
Abstract: Collective synchronization of weakly coupled oscillators is ubiquitous in many classical and quantum oscillatory systems in our nature, e.g., flashing of fireflies, heart beating of pacemaker cells, array of Josephson junctions etc. In this talk, we will discuss how complete synchronization can emerge in the Kuramoto model in a large coupling regime, and discuss several multi-dimensional extensions of the Kuramoto model to matrix groups, and we also briefly discuss the latest work on the local sensitivity analysis for the particle and kinetic Kuramoto model. The UQ work is a joint work with Shi Jin and Jinwook Jung (SNU).<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Alexander Morozov (U Edinburgh) ===<br />
<br />
''Collective behavior of microswimmer suspensions''<br />
<br />
Recent years witnessed a significant interest in physical, biological and engineering properties of self-propelled particles, such as bacteria or synthetic microswimmers. The main distinction of this 'active matter' from its passive counterpart is the ability to extract energy from the environment (consume food) and convert it into directed motion. One of the most striking consequences of this distinction is the appearance of collective motion in self-propelled particles suspended in a fluid observed in recent experiments and simulations: at low densities particles move around in an uncorrelated fashion, while at higher densities they organize into jets and vortices comprising many individual swimmers. Although this problem received significant attention in recent years, the precise origin of the transition is poorly understood.<br />
<br />
In this talk I will present a numerical method based on a Lattice-Boltzmann algorithm to simulate hydrodynamic interactions between a large number of model swimmers (order 10^5), represented by extended force dipoles. Using this method we simulate the transition to large-scale structures in dilute suspensions of self-propelled particles and show that, even well below the transition, swimmers move in a correlated fashion that cannot be described by a mean-field approach. We develop a novel kinetic theory that captures these correlations and is non-perturbative in the swimmer density. To provide an experimentally accessible measure of correlations, we calculate the diffusivity of passive tracers and reveal its non-trivial density dependence. The theory is in quantitative agreement with the Lattice-Boltzmann simulations and captures the asymmetry between pusher and puller swimmers below the transition to turbulence. Finally, we discuss our recent attempts to understand the nature of the ‘turbulent’ state.<br />
<br />
=== David Salac (U Buffalo) ===<br />
<br />
''Collective behavior of microswimmer suspensions''<br />
<br />
Recent work has demonstrated the interesting dynamics possible when considering multicomponent vesicles. Up to now, the dynamics of two dimensional vesicles have been studied. In this work, the dynamics of fully three-dimensional, multicomponent vesicles will be investigated. Building upon a volume and surface area conserving Navier-Stokes projection method, the appropriate forcing terms are derived from the energy of a multicomponent membrane. The evolution of the surface components is done via a conserving, surface Cahn-Hilliard model. The results show a rich variety of dynamics, which strongly depend on the material properties of the underlying lipid species.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15389Applied/ACMS2018-04-11T01:19:26Z<p>Spagnolie: </p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | Inverse problems in integral geometry and Boltzmann transport]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm, VV911'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | Reducing the effects of bad data measurements using variance based weighted joint sparsity ]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4''', VV 901<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://irvinelab.uchicago.edu/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11''', VV 901<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | Synchronization of Kuramoto models and its generalized models]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | Collective behavior of microswimmer suspensions]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | Three-dimensional multicomponent vesicles: methods and influence of material properties]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|[http://pages.stat.wisc.edu/~anruzhang/ Anru Zhang] (UW-Madison)<br />
|''[[Applied/ACMS/absS18#Anru Zhang (UW-Madison) | Singular value decomposition for high-dimensional high-order data]]''<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=15388Applied/Physical Applied Math2018-04-10T22:20:49Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
| Jan. 25<br />
|Saverio<br />
|Self-straining of active suspensions and a no-velocity theorem<br />
|-<br />
| Feb. 1<br />
|Thomas Fai<br />
|Lubrication theory and some related research<br />
|-<br />
| Feb. 8<br />
|Jean-Luc<br />
|Rotor-router walks<br />
|-<br />
| Feb. 15<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Feb. 22<br />
|Gage<br />
|Winding of Brownian motion with 3 slits<br />
|-<br />
| Mar. 1<br />
|Zach<br />
|Corbin et al., [https://arxiv.org/abs/1712.05778 Impact-induced acceleration by obstacles]<br />
|-<br />
| Mar. 8<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Mar. 15<br />
|Tom<br />
|Buehrle et al., Concentration fluctuations induced by randomly fluctuating sources<br />
|-<br />
| Mar. 22<br />
|John<br />
|Tenenbaum et al., [http://web.mit.edu/cocosci/Papers/sci_reprint.pdf A global geometric framework for nonlinear dimensionality reduction]<br />
|-<br />
| Mar. 29<br />
|''Spring recess''<br />
|<br />
|-<br />
| Apr. 5<br />
|John Baez<br />
|Colloquium in room 911: ''Monoidal categories of networks''<br />
|-<br />
| Apr. 12<br />
|''Faculty meeting''<br />
|<br />
|-<br />
| Apr. 19<br />
|Faustine<br />
|Ernst, Ziff and Hendriks, [https://deepblue.lib.umich.edu/bitstream/handle/2027.42/24995/0000422.pdf?sequence=1&isAllowed=y Coagulation processes with a phase transition]<br />
|-<br />
| Apr. 26<br />
|Wil<br />
|Chen and Chen, [https://www.sciencedirect.com/science/article/pii/S0020768315001377 Deformation and vibration of a spiral spring]<br />
|-<br />
| May 3<br />
|''Faculty Meeting''<br />
|<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=15387Applied/Physical Applied Math2018-04-10T22:20:37Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
| Jan. 25<br />
|Saverio<br />
|Self-straining of active suspensions and a no-velocity theorem<br />
|-<br />
| Feb. 1<br />
|Thomas Fai<br />
|Lubrication theory and some related research<br />
|-<br />
| Feb. 8<br />
|Jean-Luc<br />
|Rotor-router walks<br />
|-<br />
| Feb. 15<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Feb. 22<br />
|Gage<br />
|Winding of Brownian motion with 3 slits<br />
|-<br />
| Mar. 1<br />
|Zach<br />
|Corbin et al., [https://arxiv.org/abs/1712.05778 Impact-induced acceleration by obstacles]<br />
|-<br />
| Mar. 8<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Mar. 15<br />
|Tom<br />
|Buehrle et al., Concentration fluctuations induced by randomly fluctuating sources<br />
|-<br />
| Mar. 22<br />
|John<br />
|Tenenbaum et al., [http://web.mit.edu/cocosci/Papers/sci_reprint.pdf A global geometric framework for nonlinear dimensionality reduction]<br />
|-<br />
| Mar. 29<br />
|''Spring recess''<br />
|<br />
|-<br />
| Apr. 5<br />
|John Baez<br />
|Colloquium in room 911: ''Monoidal categories of networks''<br />
|-<br />
| Apr. 12<br />
|Faculty meeting<br />
|<br />
|-<br />
| Apr. 19<br />
|Faustine<br />
|Ernst, Ziff and Hendriks, [https://deepblue.lib.umich.edu/bitstream/handle/2027.42/24995/0000422.pdf?sequence=1&isAllowed=y Coagulation processes with a phase transition]<br />
|-<br />
| Apr. 26<br />
|Wil<br />
|Chen and Chen, [https://www.sciencedirect.com/science/article/pii/S0020768315001377 Deformation and vibration of a spiral spring]<br />
|-<br />
| May 3<br />
|''Faculty Meeting''<br />
|<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15354Applied/ACMS/absS182018-04-06T15:09:07Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Seung-Yeal Ha (Seoul National University) ===<br />
<br />
''Synchronization of Kuramoto models and its generalized models''<br />
<br />
Abstract: Collective synchronization of weakly coupled oscillators is ubiquitous in many classical and quantum oscillatory systems in our nature, e.g., flashing of fireflies, heart beating of pacemaker cells, array of Josephson junctions etc. In this talk, we will discuss how complete synchronization can emerge in the Kuramoto model in a large coupling regime, and discuss several multi-dimensional extensions of the Kuramoto model to matrix groups, and we also briefly discuss the latest work on the local sensitivity analysis for the particle and kinetic Kuramoto model. The UQ work is a joint work with Shi Jin and Jinwook Jung (SNU).<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Alexander Morozov (U Edinburgh) ===<br />
<br />
''Collective behavior of microswimmer suspensions''<br />
<br />
Recent years witnessed a significant interest in physical, biological and engineering properties of self-propelled particles, such as bacteria or synthetic microswimmers. The main distinction of this 'active matter' from its passive counterpart is the ability to extract energy from the environment (consume food) and convert it into directed motion. One of the most striking consequences of this distinction is the appearance of collective motion in self-propelled particles suspended in a fluid observed in recent experiments and simulations: at low densities particles move around in an uncorrelated fashion, while at higher densities they organize into jets and vortices comprising many individual swimmers. Although this problem received significant attention in recent years, the precise origin of the transition is poorly understood.<br />
<br />
In this talk I will present a numerical method based on a Lattice-Boltzmann algorithm to simulate hydrodynamic interactions between a large number of model swimmers (order 10^5), represented by extended force dipoles. Using this method we simulate the transition to large-scale structures in dilute suspensions of self-propelled particles and show that, even well below the transition, swimmers move in a correlated fashion that cannot be described by a mean-field approach. We develop a novel kinetic theory that captures these correlations and is non-perturbative in the swimmer density. To provide an experimentally accessible measure of correlations, we calculate the diffusivity of passive tracers and reveal its non-trivial density dependence. The theory is in quantitative agreement with the Lattice-Boltzmann simulations and captures the asymmetry between pusher and puller swimmers below the transition to turbulence. Finally, we discuss our recent attempts to understand the nature of the ‘turbulent’ state.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15353Applied/ACMS/absS182018-04-06T15:08:44Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Seung Yeal-Ha (Seoul National University) ===<br />
<br />
''Synchronization of Kuramoto models and its generalized models''<br />
<br />
Abstract: Collective synchronization of weakly coupled oscillators is ubiquitous in many classical and quantum oscillatory systems in our nature, e.g., flashing of fireflies, heart beating of pacemaker cells, array of Josephson junctions etc. In this talk, we will discuss how complete synchronization can emerge in the Kuramoto model in a large coupling regime, and discuss several multi-dimensional extensions of the Kuramoto model to matrix groups, and we also briefly discuss the latest work on the local sensitivity analysis for the particle and kinetic Kuramoto model. The UQ work is a joint work with Shi Jin and Jinwook Jung (SNU).<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Alexander Morozov (U Edinburgh) ===<br />
<br />
''Collective behavior of microswimmer suspensions''<br />
<br />
Recent years witnessed a significant interest in physical, biological and engineering properties of self-propelled particles, such as bacteria or synthetic microswimmers. The main distinction of this 'active matter' from its passive counterpart is the ability to extract energy from the environment (consume food) and convert it into directed motion. One of the most striking consequences of this distinction is the appearance of collective motion in self-propelled particles suspended in a fluid observed in recent experiments and simulations: at low densities particles move around in an uncorrelated fashion, while at higher densities they organize into jets and vortices comprising many individual swimmers. Although this problem received significant attention in recent years, the precise origin of the transition is poorly understood.<br />
<br />
In this talk I will present a numerical method based on a Lattice-Boltzmann algorithm to simulate hydrodynamic interactions between a large number of model swimmers (order 10^5), represented by extended force dipoles. Using this method we simulate the transition to large-scale structures in dilute suspensions of self-propelled particles and show that, even well below the transition, swimmers move in a correlated fashion that cannot be described by a mean-field approach. We develop a novel kinetic theory that captures these correlations and is non-perturbative in the swimmer density. To provide an experimentally accessible measure of correlations, we calculate the diffusivity of passive tracers and reveal its non-trivial density dependence. The theory is in quantitative agreement with the Lattice-Boltzmann simulations and captures the asymmetry between pusher and puller swimmers below the transition to turbulence. Finally, we discuss our recent attempts to understand the nature of the ‘turbulent’ state.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15352Applied/ACMS2018-04-06T15:08:07Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | Inverse problems in integral geometry and Boltzmann transport]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm, VV911'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | Reducing the effects of bad data measurements using variance based weighted joint sparsity ]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4''', VV 901<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://irvinelab.uchicago.edu/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11''', VV 901<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | Synchronization of Kuramoto models and its generalized models]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | Collective behavior of microswimmer suspensions]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|[http://pages.stat.wisc.edu/~anruzhang/ Anru Zhang] (UW-Madison)<br />
|''[[Applied/ACMS/absS18#Anru Zhang (UW-Madison) | Singular value decomposition for high-dimensional high-order data]]''<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=15333Applied2018-04-03T15:36:09Z<p>Spagnolie: /* News and opportunities */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie, currently a postdoc at Duke) has accepted a faculty position at Shanghai Jiao Tong University and will begin in Fall 2018. <!-- Added by saverio 2018-04-03 --><br />
<br />
* '''Will Mitchell''' (Ph.D. student of Saverio Spagnolie) has accepted a visiting assistant professorship from Macalester College and will begin in Fall 2017. <!-- Added by saverio 2017-03-17 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=15332Applied2018-04-03T15:36:00Z<p>Spagnolie: /* News and opportunities */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie, currently a postdoc at Duke) has accepted a faculty position at Shanghai Jiao Tong University and will begin in Fall 2018. <!-- Added by saverio 2018-04-03 --><br />
<br />
* '''Will Mitchell''' (Ph.D. student of Saverio Spagnolie) has accepted a visiting assistant professorship from Macalester College and will begin in Fall 2017. <!-- Added by saverio 2017-03-17 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
<br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=15331Applied2018-04-03T15:35:47Z<p>Spagnolie: /* News and opportunities */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie, currently a postdoc at Duke) has accepted a faculty position at Shanghai Jiao Tong University and will begin in Fall 2018. <!-- Added by saverio 2018-04-03 --><br />
<br />
* '''Will Mitchell''' (Ph.D. student of Saverio Spagnolie) has accepted a visiting assistant professorship from Macalester College and will begin in Fall 2017. <!-- Added by saverio 2017-03-17 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
<!-- * '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --> --><br />
<br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=15330Applied2018-04-03T15:35:27Z<p>Spagnolie: /* News and opportunities */</p>
<hr />
<div>__NOTOC__<br />
[[Image:jet.jpg|link=http://www.math.wisc.edu/~jeanluc|frame|jet striking an inclined plane]]<br />
<br />
__NOTOC__<br />
[[Image:HMSS2013_highlight1.png|link=http://dx.doi.org/10.1017/jfm.2012.597|frame]]<br />
[[Image:HMSS2013_highlight2.png|link=http://www.math.wisc.edu/~stechmann/research/|frame|scattered rain clouds versus an organized storm (a squall line)]] <!-- Added by stechmann 2013-02-03 --><br />
<br />
= '''Applied Mathematics at UW-Madison''' =<br />
<br />
Welcome to the Applied Mathematics Group at the University of Wisconsin, Madison. Our faculty members, postdoctoral fellows, and students are involved in a variety of research projects, including fluid dynamics, partial and stochastic differential equations, scientific computing, biology, biochemistry, and topology.<br />
<br />
<br><br />
<br />
== News and opportunities ==<br />
<br />
* '''Lei Li''' (former Ph.D. student of Saverio Spagnolie, currently a postdoc at Duke) has accepted a faculty position at Shanghai Jiao Tong University and will begin in Fall 2018. <!-- Added by saverio 2018-04-03 --><br />
<br />
* '''Will Mitchell''' (Ph.D. student of Saverio Spagnolie) has accepted a visiting assistant professorship from Macalester College and will begin in Fall 2017. <!-- Added by saverio 2017-03-17 --><br />
<br />
* '''Jean-Luc Thiffeault''' was featured in [https://www.washingtonpost.com/news/wonk/wp/2016/08/19/the-secret-mesmerizing-math-of-taffy-pulling/ Washington Post's Wonkblog] on his paper exploring the mathematical history of taffy pullers. [http://arxiv.org/pdf/1608.00152v1.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Gheorghe Craciun''' was featured in [https://sinews.siam.org/DetailsPage/tabid/900/ArtMID/2243/ArticleID/781/Default.aspx SIAM News] on his recent proof of the Global Attractor Conjecture. [http://arxiv.org/pdf/1501.02860.pdf link to paper] <!-- Added by saverio 2016-09-16 --><br />
<br />
* '''Lei Li''' (Ph.D. student of Saverio Spagnolie) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by saverio 2015-03-17 --><br />
<br />
* '''Gheorghe Craciun''' has received a [http://grad.wisc.edu/vilaswinners2013 Vilas Associate Award]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Sam Stechmann''' has been awarded a [http://www.sloan.org/sloan-research-fellowships/2014-sloan-research-fellows/ Sloan Fellowship]! <!-- Added by jeanluc 2014-02-19 --><br />
<br />
* '''Zhennan Zhou''' (Ph.D. student of Shi Jin) has accepted a postdoc offer from Duke University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Jingwei Hu''' (former Ph.D. student of Shi Jin, currently a postdoc at Texas-Austin) has accepted a tenure-track assistant professor position at Purdue University and will begin in Fall 2014. <!-- Added by jeanluc 2014-02-14 --><br />
<br />
* '''Masanori Koyama''' (Ph.D. student of David Anderson) graduated in Fall 2014. He began a postdoc at the Department of Systems Science, Kyoto University starting in January 2014. <!-- Added by Anderson 2014-02-10 --><br />
<br />
* '''Leland Jefferis''' (Ph.D. student of Shi Jin) was awarded an NSF Postdoctoral Fellowship and will be a postdoc at Department of Mathematics, Stanford University starting in Fall 2014. <!-- Added by jeanluc 2014-02-01 --><br />
<br />
* '''Shi Jin''' was elected to [http://fellows.siam.org/index.php?sort=year&value=2013 SIAM Fellow]. Last year he was part of the inaugural class of [http://www.ams.org/profession/fellows-list AMS Fellows]. <!-- Added by jeanluc 2013-06-11 --><br />
<br />
<br><br />
<br />
== Workshops ==<br />
<br />
* [http://www.math.wisc.edu/apamrtg/?q=meetings/rtgseminars/turbulence RTG Workshop: Turbulent and Coherent Convection] 224 Ingraham Hall, May 27-29, 2015<br />
<br />
== Seminars ==<br />
<br />
''organized by Applied Math''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/ACMS Applied and Computational Math Seminar] (Fridays at 2:25pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/GPS Graduate Applied Math Seminar] (Mondays at 3:40pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Applied/Physical_Applied_Math Physical Applied Math] Group Meeting (Spagnolie/Thiffeault) (Thursdays at 4:00pm, VV 901)<br />
* [http://www.math.wisc.edu/wiki/index.php/Networks_Seminar Networks Seminar] (Anderson/Johnston/Craciun) (Wednesdays at 2:25pm, VV 901)<br />
<!-- * Joint Math/Atmospheric & Oceanic Sciences Informal Seminar (Thursdays at 3:45 pm, AOS 811) --><br />
<br />
<br />
''other seminar series of interest''<br />
<br />
* [http://www.math.wisc.edu/wiki/index.php/Colloquia Mathematics Colloquium] (Fridays at 4:00pm, VV B239)<br />
* [http://www.math.wisc.edu/wiki/index.php/Probability_Seminar Probability Seminar] (Thursdays at 2:25pm, VV 901)<br />
* [http://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://wid.wisc.edu/research/optimization/seminars/wid-dow/ WID-DOW Seminar] (Mondays at 4:00pm, 3rd floor WID)<br />
* [http://sprott.physics.wisc.edu/Chaos-Complexity/ Chaos and Complex Systems Seminar] (Tuesdays at 12:05pm, 4274 Chamberlin Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
* [http://www.aos.wisc.edu/calendar/colloquium.htm AOS Colloquium] (Mondays at 3:30 pm; 811 AOSS building)<br />
* [http://www.astro.wisc.edu/news-events/events/category/1/1 Astronomy Colloquium] (Thursdays at 3:45 pm; 4421 Sterling Hall)<br />
<br><br />
<br />
== Tenured and tenure-track faculty ==<br />
<br />
[http://www.math.wisc.edu/~anderson/ David Anderson:] (Duke, 2005) probability and stochastic processes, computational methods for stochastic processes, biochemical networks, mathematical/systems biology.<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent:] (Leiden, 1986) partial differential equations.<br />
<br />
[http://www.math.wisc.edu/~assadi/ Amir Assadi:] (Princeton, 1978) computational & mathematical models in molecular biology & neuroscience.<br />
<br />
[http://www.math.wisc.edu/~boston/ Nigel Boston:] (Harvard, 1987) algebraic number theory, group theory, arithmetic geometry, computational algebra, coding theory, cryptography, and other applications of algebra to electrical engineering. <br />
<br />
[http://www.math.wisc.edu/~craciun/ Gheorghe Craciun:] (Ohio State, 2002) mathematical biology, biochemical networks, biological interaction networks.<br />
<br />
[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich:] (Tel Aviv, 2006) Representation theory of groups, algebraic geometry, applications to signal Processing, structural biology, mathematical physics.<br />
<br />
[http://www.math.wisc.edu/~jin/ Shi Jin:] (Arizona, 1991) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~qinli/ Qin Li:] (Wisconsin, 2012) applied & computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa:] (Minnesota, 1991) differential geometry, applied math.<br />
<br />
[http://www.math.wisc.edu/~mitchell/ Julie Mitchell:] (Berkeley, 1998) computational mathematics, structural biology.<br />
<br />
[http://www.math.wisc.edu/~roch/ S&eacute;bastien Roch:] (Berkeley, 2007) applied probability, statistics and theoretical computer science, with emphasis on biological applications.<br />
<br />
[http://www.math.wisc.edu/~lsmith/ Leslie Smith:] (MIT, 1988) applied mathematics. Waves and coherent structures in oceanic and atmospheric flows. <br />
<br />
[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie:] (Courant, 2008) fluid dynamics, biological locomotion, soft matter, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~stechmann/ Sam Stechmann:] (Courant, 2008) fluid dynamics, atmospheric science, computational mathematics.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault:] (Texas, 1998) fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[http://www.math.wisc.edu/~waleffe/ Fabian Waleffe:] (MIT, 1989) applied and computational mathematics. Fluid dynamics, hydrodynamic instabilities. Turbulence and unstable coherent flows.<br />
<br />
<!-- [http://www.math.wisc.edu/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.--><br />
<!-- [http://www.math.wisc.edu/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials--><br />
<br><br />
<br />
== Postdoctoral fellows and researchers ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/30-majid-arabgol Majid Arabgol:]<br />
HPC & Visualization Research Scholar<br />
<br />
[http://www.math.wisc.edu/~boonkasa Anakewit (Tete) Boonkasame:] (UW Madison, 2012)<br />
<br />
[http://mbudisic.wordpress.com Marko Budi&#x161;i&#x107;:] (UC Santa Barbara, 2012) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~sqchen/ Shengqian "Chessy" Chen:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[https://artioevans.wordpress.com/ Arthur Evans:] (UCSD, 2011) soft matter, complex fluids<br />
<br />
[http://www.math.wisc.edu/~shottovy/ Scott Hottovy:] (Arizona, 2013) probability, stochastic processes, atmospheric science<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<br />
<br />
[http://www.math.wisc.edu/~ogrosky/ Reed Ogrosky:] (UNC Chapel Hill, 2013) nonlinear waves, fluid dynamics, atmospheric science<br />
<br />
<!-- [http://www.math.wisc.edu/~dwei/ Dongming Wei:] (Maryland, 2007) nonlinear partial differential equations, applied analysis, and numerical computation. --><br />
<br />
<br><br />
<br />
== Current Graduate Students ==<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/23-adel-ardalan Adel Ardalan:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/24-hamisha-ardalani Hamisha Ardalani:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jdbrunner/index.html James Brunner:] Student of Gheorghe Craciun.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/26-alireza-fotuhi-siahpirani Alireza Fotuhi:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jhao8/ Jing Hao:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/27-mohammad-khabazian Mohammad Khabbazian:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~koyama/ Masanori (Maso) Koyama:] Student of David Anderson.<br />
<br />
Liu Liu: Student of Shi Jin<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/32-hasti-mirkia Hasti Mirkia:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~whmitchell/ Will Mitchell:] Student of Saverio Spagnolie.<br />
<br />
[http://www.math.wisc.edu/~tamorrell/ Thomas Morrell:] Student of Saverio Spagnolie and Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~nan/ Ting-Ting Nan:] Student of Nigel Boston.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/28-arash-sangari Arash Sangari:] Student of Amir Assadi.<br />
<br />
[http://vv811a.math.wisc.edu/persepolis/index.php/members/10-members/29-ebru-selin-selen Ebru Selin Selen:] Student of Amir Assadi.<br />
<br />
[http://www.math.wisc.edu/~jskim/ Jinsu Kim:] Student of David Anderson.<br />
<br />
[http://www.math.wisc.edu/~wen/ Huanyu Wen:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~skubak/ Elizabeth Skubak Wolf:] Student of David Anderson.<br />
<br />
Qian You: Student of Sigurd Angenent.<br />
<br />
<!-- Past students: --><br />
<!-- Yun Sun: Student of David Anderson.--><br />
<!-- [http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.--><br />
<!-- [http://www.math.wisc.edu/~jefferis/ Leland Jefferis:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~hu/ Jingwei Hu:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~yan/ Bokai Yan:] Student of Shi Jin. --><br />
<!-- [http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie. --><br />
<!--Zhan Wang: Student of Paul Milewski.--><br />
<!--Anekewit (Tete) Boonkasame: Student of Paul Milewski.--><br />
<!--Peng Qi: Student of Shi Jin. --><br />
<!--Li (Aug) Wang: Student of Shi Jin. --><br />
<!-- Lei Li: Student of Saverio Spagnolie. --><br />
<!--Li Wang: Student of Leslie Smith. --><br />
<!--David Seal: Student of James Rossmanith. --><br />
<!--E. Alec Johnson: Student of James Rossmanith. --><br />
<!--Hesam Dashti: MSc Student of Amir Assadi.--><br />
<!--Qiang Deng: Student of Leslie Smith.--><br />
<!--[http://www.math.wisc.edu/~matz/ Sarah Tumasz:] Student of Jean-Luc Thiffeault.--><br />
<!--[http://www.math.wisc.edu/~qinli/ Qin Li:] Student of Shi Jin.--><br />
<!--Yongtao Cheng: Student of James Rossmanith.--><br />
<!-- [http://www.math.wisc.edu/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault. --><br />
<br />
<br><br />
<br />
== Graduate course offerings ==<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2016] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 801: Topics in Applied Mathematics: Hydrodynamic instabilities and bifurcations (Fabian Waleffe)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2017] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Daniele Cappelletti, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Jean-Luc Thiffeault)<br />
* Math 715: Methods of Computational Math II (Qin Li)<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2014] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Benedek Valko)<br />
* Math 703: Methods of Applied Mathematics I (Gheorghe Craciun)<br />
* Math 714: Methods of Computational Math I (Sam Stechmann)<br />
* Math 801: Topics in Applied Mathematics (Shi Jin)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2015] ===<br />
<br />
* Math 632: Introduction to Stochastic Processes (Sebastien Roch, Jun Yin)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics: Nonlinear dynamics and applications (Gheorghe Craciun) --><br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2013] ===<br />
<br />
* Math 605: Stochastic Methods for Biology (David Anderson)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 826: Advanced Topics in Functional Analysis and Differential Equations (Alexander Kiselev)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2014] ===<br />
<br />
<br />
* Math 609: Mathematical Methods for Systems Biology (Gheorghe Craciun)<br />
* Math 632: Introduction to Stochastic Processes (Gregory Shinault)<br />
* Math 704: Methods of Applied Mathematics II (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Jean-Luc Thiffeault)<br />
* Math 801: Topics in Applied Mathematics: Biological Continuum Mechanics (Saverio Spagnolie) --><br />
<br />
<br />
<!-- === [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2012] ===<br />
<br />
* Math 606: Mathematical Methods for Structural Biology (Julie Mitchell)<br />
* Math 632: Introduction to Stochastic Processes (David Anderson)<br />
* Math 703: Methods of Applied Mathematics 1 (Jean-Luc Thiffeault)<br />
* Math 705: Mathematical Fluid Dynamics (Saverio Spagnolie)<br />
* Math 714: Methods of Computational Math I (Shi Jin)<br />
* Math 833: Topics in Probability - Stochastic Processes in Evolution and Genetics (Sebastien Roch)<br />
* Math 842: Topics in Applied Algebra for EE/Math/CS students (Shamgar Gurevich)<br />
<br />
=== [http://www.math.wisc.edu/graduate/gcourses_spring Spring 2013] ===<br />
<br />
* Math 704: Methods of Applied Mathematics 2 (Sam Stechmann)<br />
* Math 715: Methods of Computational Math II (Saverio Spagnolie)<br />
* Math 801: Topics in Applied Mathematics -- Mathematical Aspects of Mixing (Jean-Luc Thiffeault) --><br />
<br />
<!-- === Spring 2012 ===<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (S. Stechmann) --><br />
<br />
<br />
<!--<br />
=== [http://www.math.wisc.edu/graduate/gcourses_fall Fall 2011] ===<br />
<br />
* Math 605: [http://www.math.wisc.edu/math-727-calculus-variations-0 Stochastic Methods for Biology] (D. Anderson)<br />
* Math 703: [http://www.math.wisc.edu/math-703-methods-applied-mathematics-i Methods of Applied Mathematics II] (L. Smith)<br />
* Math 707: [http://www.math.wisc.edu/math707-ema700-theory-elasticity Theory of Elasticity] (F. Waleffe)<br />
* Math 714: [http://www.math.wisc.edu/math-714-scientific-computing Methods of Computational Math I] (J. Mitchell)<br />
* Math 801: [http://www.math.wisc.edu/801-waves-fluids Comp Math Applied to Biology] (A. Assadi)<br />
* Math 837: [http://www.math.wisc.edu/math-837-topics-numerical-analysis Topics in Numerical Analysis] (S. Jin)<br />
--><br />
<br />
<!--<br />
Spring 2011:<br />
* Math 609: [https://www.math.wisc.edu/609-mathematical-methods-systems-biology Mathematical Methods for Systems Biology] (G. Craciun)<br />
* Math 704: [https://www.math.wisc.edu/704-methods-applied-mathematics-2 Methods of Applied Mathematics II] (S. Stechmann)<br />
* Math/CS 715: [https://www.math.wisc.edu/715-methods-computational-math-ii Methods of Computational Math II] (S. Jin)<br />
* Math 801: [https://www.math.wisc.edu/math-801-hydrodynamic-instabilities-chaos-and-turbulence Hydrodynamic Instabilities, Chaos and Turbulence] (F. Waleffe)<br />
* Math 826: [https://www.math.wisc.edu/826-Functional-Analysis Partial Differential Equations in Fluids and Biology] (A. Kiselev)<br />
* Math/CS 837: [https://www.math.wisc.edu/837-Numerical-Analysis Numerical Methods for Hyperbolic PDEs] (J. Rossmanith)<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [http://www.math.wisc.edu/wiki/index.php Mathematics Department Wiki Page]<br />
<br />
[http://www3.clustrmaps.com/stats/maps-no_clusters/www.math.wisc.edu-wiki-index.php-Applied-thumb.jpg Locations of visitors to this page] ([http://www3.clustrmaps.com/user/195f39ef Clustermaps])</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15327Applied/ACMS2018-04-03T15:04:10Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | Inverse problems in integral geometry and Boltzmann transport]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm, VV911'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | Reducing the effects of bad data measurements using variance based weighted joint sparsity ]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4''', VV 901<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://irvinelab.uchicago.edu/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11''', VV 901<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | Collective behavior of microswimmer suspensions]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|[http://pages.stat.wisc.edu/~anruzhang/ Anru Zhang] (UW-Madison)<br />
|''[[Applied/ACMS/absS18#Anru Zhang (UW-Madison) | Singular value decomposition for high-dimensional high-order data]]''<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15326Applied/ACMS/absS182018-04-02T23:45:04Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Alexander Morozov (U Edinburgh) ===<br />
<br />
''Collective behavior of microswimmer suspensions''<br />
<br />
Recent years witnessed a significant interest in physical, biological and engineering properties of self-propelled particles, such as bacteria or synthetic microswimmers. The main distinction of this 'active matter' from its passive counterpart is the ability to extract energy from the environment (consume food) and convert it into directed motion. One of the most striking consequences of this distinction is the appearance of collective motion in self-propelled particles suspended in a fluid observed in recent experiments and simulations: at low densities particles move around in an uncorrelated fashion, while at higher densities they organize into jets and vortices comprising many individual swimmers. Although this problem received significant attention in recent years, the precise origin of the transition is poorly understood.<br />
<br />
In this talk I will present a numerical method based on a Lattice-Boltzmann algorithm to simulate hydrodynamic interactions between a large number of model swimmers (order 10^5), represented by extended force dipoles. Using this method we simulate the transition to large-scale structures in dilute suspensions of self-propelled particles and show that, even well below the transition, swimmers move in a correlated fashion that cannot be described by a mean-field approach. We develop a novel kinetic theory that captures these correlations and is non-perturbative in the swimmer density. To provide an experimentally accessible measure of correlations, we calculate the diffusivity of passive tracers and reveal its non-trivial density dependence. The theory is in quantitative agreement with the Lattice-Boltzmann simulations and captures the asymmetry between pusher and puller swimmers below the transition to turbulence. Finally, we discuss our recent attempts to understand the nature of the ‘turbulent’ state.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15325Applied/ACMS2018-04-02T23:43:38Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | Inverse problems in integral geometry and Boltzmann transport]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm, VV911'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | Reducing the effects of bad data measurements using variance based weighted joint sparsity ]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://irvinelab.uchicago.edu/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | Collective behavior of microswimmer suspensions]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|[http://pages.stat.wisc.edu/~anruzhang/ Anru Zhang] (UW-Madison)<br />
|''[[Applied/ACMS/absS18#Anru Zhang (UW-Madison) | Singular value decomposition for high-dimensional high-order data]]''<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15316Applied/ACMS2018-04-02T02:32:15Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | Inverse problems in integral geometry and Boltzmann transport]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm, VV911'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | Reducing the effects of bad data measurements using variance based weighted joint sparsity ]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://irvinelab.uchicago.edu/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|[http://pages.stat.wisc.edu/~anruzhang/ Anru Zhang] (UW-Madison)<br />
|''[[Applied/ACMS/absS18#Anru Zhang (UW-Madison) | Singular value decomposition for high-dimensional high-order data]]''<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15315Applied/ACMS/absS182018-04-01T17:36:40Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15314Applied/ACMS/absS182018-04-01T17:36:30Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15313Applied/ACMS/absS182018-04-01T17:35:49Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Francois Monard (UC Santa Cruz) ===<br />
<br />
''Inverse problems in integral geometry and Boltzmann transport''<br />
<br />
The Boltzmann transport (or radiative transfer) equation describes the transport of photons interacting with a medium via attenuation and scattering effects. Such an equation serves as the model for many imaging modalities (e.g., SPECT, Optical Tomography) where one aims at reconstructing the optical parameters (absorption/scattering) or a source term, out of measurements of intensities radiated outside the domain of interest. <br />
<br />
In this talk, we will review recent progress on the inversion of some of the inverse problems mentioned above. In particular, we will discuss an interesting connection between the inverse source problem (where the optical parameters are assumed to be known) and a problem from integral geometry, namely the tensor tomography problem (or how to reconstruct a tensor field from knowledge of its integrals along geodesic curves).<br />
<br />
=== Haizhao Yang (National University of Singapore) ===<br />
<br />
''A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?''<br />
<br />
This talk introduces fast algorithms of the matvec $g=Kf$ for $K\in \mathbb{C}^{N\times N}$, which is the discretization of the oscillatory integral transform $g(x) = \int K(x,\xi) f(\xi)d\xi$ with a kernel function $K(x,\xi)=\alpha(x,\xi)e^{2\pi i\Phi(x,\xi)}$, where $\alpha(x,\xi)$ is a smooth amplitude function , and $\Phi(x,\xi)$ is a piecewise smooth phase function with $O(1)$ discontinuous points in $x$ and $\xi$. A unified framework is proposed to compute $Kf$ with $O(N\log N)$ time and memory complexity via the non-uniform fast Fourier transform (NUFFT) or the butterfly factorization (BF), together with an $O(N)$ fast algorithm to determine whether NUFFT or BF is more suitable. This framework works for two cases: 1) explicite formulas for the amplitude and phase functions are known; 2) only indirect access of the amplitude and phase functions are available. Especially in the case of indirect access, our main contributions are: 1) an $O(N\log N)$ algorithm for recovering the amplitude and phase functions is proposed based on a new low-rank matrix recovery algorithm; 2) a new stable and nearly optimal BF with amplitude and phase functions in form of a low-rank factorization (IBF-MAT) is proposed to evaluate the matvec $Kf$. Numerical results are provided to demonstrate the effectiveness of the proposed framework.<br />
<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Anne Gelb (Dartmouth) ===<br />
<br />
''Reducing the effects of bad data measurements using variance based weighted joint sparsity ''<br />
<br />
We introduce the variance based joint sparsity (VBJS) method for sparse signal recovery and image reconstruction from multiple measurement vectors. Joint sparsity techniques employing $\ell_{2,1}$ minimization are typically used, but the algorithm is computationally intensive and requires fine tuning of parameters. The VBJS method uses a weighted $\ell_1$ joint sparsity algorithm, where the weights depend on the pixel-wise variance. The VBJS method is accurate, robust, cost efficient and also reduces the effects of false data. <br />
<br />
=== William Irvine (U Chicago) ===<br />
<br />
''Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids''<br />
<br />
Geometry, topology and broken symmetry often play a powerful role in determining the organization and properties of materials. A recent example is the discovery that the excitation spectra of materials -- be they electronic, optical, or mechanical -- may be topologically non-trivial. I will explore the use of `spinning tops' to explore this physics. In particular I will discuss an experimental and theoretical study of a simple kind of active meta-material – coupled gyroscopes – that naturally encodes non-trivial topology in its vibrational spectrum. These materials have topologically protected edge modes which we observe in experiment. Crucially, the geometry of the underlying lattice controls the presence of time reversal symmetry that is essential to the non-trivial topology of the spectrum. We exploit this to control the chirality of the edge modes by simply deforming the lattice. Moving beyond ordered lattices we show that amorphous gyroscopic networks are naturally topological. If time permits I will conclude with a brief foray into gyrofluids: the liquid counterpart of these topological solids.<br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM''<br />
<br />
Convection in the tropics is organized into a hierarchy of scales ranging from the individual cloud of 1 to 10 km to cloud clusters and super-clusters of 100’s km and 1000’s km, respectively, and their planetary scale envelopes. These cloud systems are strongly coupled to large scale dynamics in the from of wave disturbances going by the names of meso-scale systems, convectively coupled equatorial waves (CCEW), and intraseasonal oscillations, including the eastward propagating Madden Julian Oscillation (MJO) and poleward moving monsoon intraseasonal oscillation (MISO). Coarse resolution climate models (GCMs) have serious difficulties in representing these tropical modes of variability, which are known to impact weather and climate variability in both the tropics and elsewhere on the globe. Atmospheric rivers, for example, such the pineapple express that brings heavy rainfall to the Pacific North West, are believed to be directly connected to the MJO. <br />
<br />
The deficiency in the GCMs is believed to be rooted from the inadequateness of the underlying cumulus parameterizations to represent the variability at the multiple spatial and temporal scales of organized convection and the associated two-way interactions between the wave flows and convection; these parameterizations are based on the quasi-equilibrium closure where convection is basically slaved to the large scale dynamics. To overcome this problem we employ a stochastic multi-cloud model (SMCM) convective parametrization, which mimics the interactions at sub-grid scales of multiple cloud types, as seen in observations. The new scheme is incorporated into the National Centers for Environmental Prediction (NCEP) Climate Forecast System version 2 (CFSv2) model (CFSsmcm) in lieu of the pre-existing simplified Arakawa-Schubert (SAS) cumulus scheme. <br />
<br />
Significant improvements are seen in the simulation of MJO, CCEWs as well as the Indian MISO. These improvements appear in the form<br />
of improved variability, morphology and physical features of these wave flows. This particularly confirms the multicloud paradigm of organized tropical convection, on which the SMCM design was based, namely, congestus, deep and stratiform cloud decks that interact with each other to form the building block for multiscale convective systems. An adequate account for the dynamical interactions of this cloud hierarchy thus constitutes an important requirement for cumulus parameterizations to succeed in representing atmospheric tropical variability. SAS fails to fulfill this requirement evident in the unrealistic physical structures of the major intra-seasonal modes simulated by the default CFSv2.<br />
<br />
=== Anru Zhang (UW-Madison, statistics) ===<br />
<br />
''Singular value decomposition for high-dimensional high-order data''<br />
<br />
High-dimensional high-order data arise in many modern scientific applications including genomics, brain imaging, and social science. In this talk, we consider the methods, theories, and computations for tensor singular value decomposition (tensor SVD), which aims to extract the hidden low-rank structure from high-dimensional high-order data. First, comprehensive results are developed on both the statistical and computational limits for tensor SVD under the general scenario. This problem exhibits three different phases according to signal-noise-ratio (SNR), and the minimax-optimal statistical and/or computational results are developed in each of the regimes. In addition, we further consider the sparse tensor singular value decomposition which allows more robust estimation under sparsity structural assumptions. A novel sparse tensor alternating thresholding algorithm is proposed. Both the optimal theoretical results and numerical analyses are provided to guarantee the performance of the proposed procedure.</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15312Applied/ACMS2018-04-01T17:35:04Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | Inverse problems in integral geometry and Boltzmann transport]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm, VV911'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | Reducing the effects of bad data measurements using variance based weighted joint sparsity ]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://jfi.uchicago.edu/~william/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | Spinning top-ology: Order, disorder and topology in mechanical gyro-materials and fluids]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | Using a stochastic convective parametrization to improve the simulation of tropical modes of variability in a GCM]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|[http://pages.stat.wisc.edu/~anruzhang/ Anru Zhang] (UW-Madison)<br />
|''[[Applied/ACMS/absS18#Anru Zhang (UW-Madison) | Singular value decomposition for high-dimensional high-order data]]''<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=15304Applied/Physical Applied Math2018-03-29T19:51:35Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
| Jan. 25<br />
|Saverio<br />
|Self-straining of active suspensions and a no-velocity theorem<br />
|-<br />
| Feb. 1<br />
|Thomas Fai<br />
|Lubrication theory and some related research<br />
|-<br />
| Feb. 8<br />
|Jean-Luc<br />
|Rotor-router walks<br />
|-<br />
| Feb. 15<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Feb. 22<br />
|Gage<br />
|Winding of Brownian motion with 3 slits<br />
|-<br />
| Mar. 1<br />
|Zach<br />
|Corbin et al., [https://arxiv.org/abs/1712.05778 Impact-induced acceleration by obstacles]<br />
|-<br />
| Mar. 8<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Mar. 15<br />
|Tom<br />
|Buehrle et al., Concentration fluctuations induced by randomly fluctuating sources<br />
|-<br />
| Mar. 22<br />
|John<br />
|Tenenbaum et al., [http://web.mit.edu/cocosci/Papers/sci_reprint.pdf A global geometric framework for nonlinear dimensionality reduction]<br />
|-<br />
| Mar. 29<br />
|''Spring recess''<br />
|<br />
|-<br />
| Apr. 5<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Apr. 12<br />
|Faustine<br />
|Ernst, Ziff and Hendriks, [https://deepblue.lib.umich.edu/bitstream/handle/2027.42/24995/0000422.pdf?sequence=1&isAllowed=y Coagulation processes with a phase transition]<br />
|-<br />
| Apr. 19<br />
|Shouwei<br />
|<br />
|-<br />
| Apr. 26<br />
|Wil<br />
|Chen and Chen, [https://www.sciencedirect.com/science/article/pii/S0020768315001377 Deformation and vibration of a spiral spring]<br />
|-<br />
| May 3<br />
|''Faculty Meeting''<br />
|<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=15303Applied/Physical Applied Math2018-03-29T19:49:40Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
| Jan. 25<br />
|Saverio<br />
|Self-straining of active suspensions and a no-velocity theorem<br />
|-<br />
| Feb. 1<br />
|Thomas Fai<br />
|Lubrication theory and some related research<br />
|-<br />
| Feb. 8<br />
|Jean-Luc<br />
|Rotor-router walks<br />
|-<br />
| Feb. 15<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Feb. 22<br />
|Gage<br />
|Winding of Brownian motion with 3 slits<br />
|-<br />
| Mar. 1<br />
|Zach<br />
|Corbin et al., [https://arxiv.org/abs/1712.05778 Impact-induced acceleration by obstacles]<br />
|-<br />
| Mar. 8<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Mar. 15<br />
|Tom<br />
|Buehrle et al., Concentration fluctuations induced by randomly fluctuating sources<br />
|-<br />
| Mar. 22<br />
|John<br />
|Tenenbaum et al., [http://web.mit.edu/cocosci/Papers/sci_reprint.pdf A global geometric framework for nonlinear dimensionality reduction]<br />
|-<br />
| Mar. 29<br />
|''Spring recess''<br />
|<br />
|-<br />
| Apr. 5<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Apr. 12<br />
|Faustine<br />
|Ernst, Ziff and Hendriks, [https://link.springer.com/article/10.1007/bf01019497 Coagulation processes with a phase transition]<br />
|-<br />
| Apr. 19<br />
|Shouwei<br />
|<br />
|-<br />
| Apr. 26<br />
|Wil<br />
|Chen and Chen, [https://www.sciencedirect.com/science/article/pii/S0020768315001377 Deformation and vibration of a spiral spring]<br />
|-<br />
| May 3<br />
|''Faculty Meeting''<br />
|<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=15285Applied/Physical Applied Math2018-03-22T14:53:25Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
| Jan. 25<br />
|Saverio<br />
|Self-straining of active suspensions and a no-velocity theorem<br />
|-<br />
| Feb. 1<br />
|Thomas Fai<br />
|Lubrication theory and some related research<br />
|-<br />
| Feb. 8<br />
|Jean-Luc<br />
|Rotor-router walks<br />
|-<br />
| Feb. 15<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Feb. 22<br />
|Gage<br />
|Winding of Brownian motion with 3 slits<br />
|-<br />
| Mar. 1<br />
|Zach<br />
|Corbin et al., [https://arxiv.org/abs/1712.05778 Impact-induced acceleration by obstacles]<br />
|-<br />
| Mar. 8<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Mar. 15<br />
|Tom<br />
|Buehrle et al., Concentration fluctuations induced by randomly fluctuating sources<br />
|-<br />
| Mar. 22<br />
|John<br />
|Tenenbaum et al., [http://web.mit.edu/cocosci/Papers/sci_reprint.pdf A global geometric framework for nonlinear dimensionality reduction]<br />
|-<br />
| Mar. 29<br />
|''Spring recess''<br />
|<br />
|-<br />
| Apr. 5<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Apr. 12<br />
|Faustine<br />
|<br />
|-<br />
| Apr. 19<br />
|Shouwei<br />
|<br />
|-<br />
| Apr. 26<br />
|Wil<br />
|Chen and Chen, [https://www.sciencedirect.com/science/article/pii/S0020768315001377 Deformation and vibration of a spiral spring]<br />
|-<br />
| May 3<br />
|''Faculty Meeting''<br />
|<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=15284Applied/Physical Applied Math2018-03-22T14:52:33Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
| Jan. 25<br />
|Saverio<br />
|Self-straining of active suspensions and a no-velocity theorem<br />
|-<br />
| Feb. 1<br />
|Thomas Fai<br />
|Lubrication theory and some related research<br />
|-<br />
| Feb. 8<br />
|Jean-Luc<br />
|Rotor-router walks<br />
|-<br />
| Feb. 15<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Feb. 22<br />
|Gage<br />
|Winding of Brownian motion with 3 slits<br />
|-<br />
| Mar. 1<br />
|Zach<br />
|Corbin et al., [https://arxiv.org/abs/1712.05778 Impact-induced acceleration by obstacles]<br />
|-<br />
| Mar. 8<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Mar. 15<br />
|Tom<br />
|Buehrle et al., Concentration fluctuations induced by randomly fluctuating sources<br />
|-<br />
| Mar. 22<br />
|John<br />
|Tenenbaum et al., [http://web.mit.edu/cocosci/Papers/sci_reprint.pdf A global geometric framework for nonlinear dimensionality reduction]<br />
|-<br />
| Mar. 29<br />
|''Spring recess''<br />
|<br />
|-<br />
| Apr. 5<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Apr. 12<br />
|Faustine<br />
|<br />
|-<br />
| Apr. 19<br />
|Shouwei<br />
|<br />
|-<br />
| Apr. 26<br />
|Wil<br />
|Chen and Chen, [https://www.sciencedirect.com/science/article/pii/S0020768315001377]<br />
|-<br />
| May 3<br />
|''Faculty Meeting''<br />
|<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15093Applied/ACMS2018-02-12T19:03:08Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | TBA]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | TBA]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://jfi.uchicago.edu/~william/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | TBA]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15092Applied/ACMS2018-02-12T19:02:45Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | TBA]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | A Unified Framework for Oscillatory Integral Transform: When to use NUFFT or Butterfly Factorization?]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | TBA]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://jfi.uchicago.edu/~william/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | TBA]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16, VV B115'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15076Applied/ACMS2018-02-10T13:21:25Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | TBA]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | TBA]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | TBA]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://jfi.uchicago.edu/~william/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | TBA]]''<br />
|Smith, Stechmann<br />
|-<br />
| '''Mon. Apr. 16'''<br />
|[https://www2.ph.ed.ac.uk/~amorozov/ Alexander Morozov] (U Edinburgh)<br />
|''[[Applied/ACMS/absS18#Alexander Morozov (U Edinburgh) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15075Applied/ACMS/absS182018-02-09T19:30:23Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Title TBA''<br />
<br />
Abstract TBA</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15068Applied/ACMS2018-02-09T02:23:11Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | TBA]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | TBA]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | TBA]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://jfi.uchicago.edu/~william/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Jin<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | TBA]]''<br />
|Smith, Stechmann<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15067Applied/ACMS2018-02-09T02:22:39Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | TBA]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | TBA]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | TBA]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://jfi.uchicago.edu/~william/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| '''Wed. Apr. 11'''<br />
|[http://www.math.snu.ac.kr/~syha/ Seung-Yeal Ha] (Seoul National University)<br />
|''[[Applied/ACMS/absS18#Seung-Yeal Ha (Seoul National University) | TBA]]''<br />
|Smith, Stechmann<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | TBA]]''<br />
|Smith, Stechmann<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=15065Applied/Physical Applied Math2018-02-08T15:32:02Z<p>Spagnolie: </p>
<hr />
<div>= Physical Applied Math Group Meeting =<br />
<br />
*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the Physical Applied Math mailing list:''' See the [https://admin.lists.wisc.edu/index.php?p=11&l=phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
| Jan. 25<br />
|Saverio<br />
|Self-straining of active suspensions and a no-velocity theorem<br />
|-<br />
| Feb. 1<br />
|Thomas Fai<br />
|<br />
|-<br />
| Feb. 8<br />
|Jean-Luc<br />
|Rotor-router walks<br />
|-<br />
| Feb. 15<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Feb. 22<br />
|Gage<br />
|<br />
|-<br />
| Mar. 1<br />
|Zach<br />
|<br />
|-<br />
| Mar. 8<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Mar. 15<br />
|Tom<br />
|<br />
|-<br />
| Mar. 22<br />
|Jon<br />
|<br />
|-<br />
| Mar. 29<br />
|''Spring recess''<br />
|<br />
|-<br />
| Apr. 5<br />
|''Faculty Meeting''<br />
|<br />
|-<br />
| Apr. 12<br />
|Faustine<br />
|<br />
|-<br />
| Apr. 19<br />
|Shouwei<br />
|<br />
|-<br />
| Apr. 26<br />
|Wil<br />
|<br />
|-<br />
| May 3<br />
|''Faculty Meeting''<br />
|<br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]<br />
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]<br />
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]<br />
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]<br />
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]<br />
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]<br />
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=15019Applied/ACMS2018-02-05T14:51:07Z<p>Spagnolie: /* Spring 2018 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' 901 Van Vleck Hall<br />
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]<br />
*'''To join the ACMS mailing list:''' See [https://admin.lists.wisc.edu/index.php?p=11&l=acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Feb. 2, '''4pm, VV 911'''<br />
|[https://scholar.harvard.edu/tfai Thomas Fai] (Harvard)<br />
|''[[Applied/ACMS/absS18#Thomas Fai (Harvard) | The Lubricated Immersed Boundary Method]]''<br />
| Spagnolie<br />
|-<br />
| Feb. 9 <br />
|[https://sites.google.com/site/michaelherty/home Michael Herty] (RWTH-Aachen)<br />
|''[[Applied/ACMS/absS18#Michael Herty (RWTH-Aachen) | Opinion Formation Models and Mean field Games Techniques]]''<br />
|Jin<br />
|-<br />
| Feb. 16<br />
|[https://atmo.tamu.edu/people/faculty/panettalee.html Lee Panetta] (Texas A&M)<br />
|''[[Applied/ACMS/absS18#Lee Panetta (Texas A&M) | Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals]]''<br />
| Smith<br />
|-<br />
| Feb. 23<br />
|[https://people.ucsc.edu/~fmonard/ François Monard] (UC Santa Cruz)<br />
|''[[Applied/ACMS/absS18#François Monard (UC Santa Cruz) | TBA]]''<br />
|Li<br />
|-<br />
| ''' Wed, Feb. 28'''<br />
|[http://www.math.nus.edu.sg/~matyh/ Haizhao Yang] (National University of Singapore)<br />
|''[[Applied/ACMS/absS18#Haizhao Yang (National University of Singapore) | TBA]]''<br />
|Li<br />
|-<br />
| Mar. 2<br />
|[http://wwwf.imperial.ac.uk/~ekeaveny/ Eric Keaveny] (Imperial College London)<br />
|''[[Applied/ACMS/absS18#Eric Keaveny (Imperial College London) | Linking the micro- and macro-scales in populations of swimming cells]]''<br />
|Spagnolie, Thiffeault<br />
|-<br />
| Mar. 9<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 16, '''4pm'''<br />
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)<br />
|''[[Applied/ACMS/absS18#Anne Gelb (Dartmouth) | TBA]]''<br />
|Li <br />
|-<br />
| Mar. 23<br />
|<br />
|<br />
|<br />
|-<br />
| Mar. 30<br />
|Spring break <br />
| <br />
| <br />
|-<br />
| '''Wed. Apr. 4'''<br />
|[http://people.math.gatech.edu/~mtao8/ Molei Tao] (Georgia Tech)<br />
|''[[Applied/ACMS/absS18#Molei Tao (Georgia Tech) | Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance]]''<br />
|Jin<br />
|-<br />
| Apr. 6<br />
|[http://jfi.uchicago.edu/~william/ William Irvine] (U Chicago)<br />
|''[[Applied/ACMS/absS18#William Irvine (U Chicago) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 13<br />
|[http://www.math.uvic.ca/~khouider/ Boualem Khouider] (UVic)<br />
|''[[Applied/ACMS/absS18#Boualem Khouider (UVic) | TBA]]''<br />
|Smith, Stechmann<br />
|-<br />
| Apr. 20<br />
|[http://www.acsu.buffalo.edu/~davidsal/ David Salac] (SUNY Buffalo)<br />
|''[[Applied/ACMS/absS18#David Salac (SUNY Buffalo) | TBA]]''<br />
|Spagnolie<br />
|-<br />
| Apr. 27<br />
|<br />
| <br />
| <br />
|}<br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Fall2017|Fall 2017]]<br />
*[[Applied/ACMS/Spring2017|Spring 2017]]<br />
*[[Applied/ACMS/Fall2016|Fall 2016]]<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<br />
*[[Applied/ACMS/Fall2015|Fall 2015]]<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<br />
*[[Applied/ACMS/Fall2014|Fall 2014]]<br />
*[[Applied/ACMS/Spring2014|Spring 2014]]<br />
*[[Applied/ACMS/Fall2013|Fall 2013]]<br />
*[[Applied/ACMS/Spring2013|Spring 2013]]<br />
*[[Applied/ACMS/Fall2012|Fall 2012]]<br />
*[[Applied/ACMS/Spring2012|Spring 2012]]<br />
*[[Applied/ACMS/Fall2011|Fall 2011]]<br />
*[[Applied/ACMS/Spring2011|Spring 2011]]<br />
*[[Applied/ACMS/Fall2010|Fall 2010]]<br />
<!--<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring10.html Spring 2010]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall09.html Fall 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring09.html Spring 2009]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall08.html Fall 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring08.html Spring 2008]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall07.html Fall 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Spring07.html Spring 2007]<br />
*[http://www.math.wisc.edu/~jeanluc/ACMS/archive/Fall06.html Fall 2006]<br />
--><br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15018Applied/ACMS/absS182018-02-05T14:50:52Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Eric Keaveny (Imperial College London) ===<br />
<br />
''Linking the micro- and macro-scales in populations of swimming cells''<br />
<br />
Swimming cells and microorganisms are as diverse in their collective dynamics as they are in their individual shapes and swimming mechanisms. They are able to propel themselves through simple viscous fluids, as well as through more complex environments where they must interact with other microscopic structures. In this talk, I will describe recent simulations that explore the connection between dynamics at the scale of the cell with that of the population in the case where the cells are sperm. In particular, I will discuss how the motion of the sperm’s flagella can greatly impact the overall dynamics of their suspensions. Additionally, I will discuss how in complex environments, the density and stiffness of structures with which the cells interact impact the effective diffusion of the population.<br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Title TBA''<br />
<br />
Abstract TBA</div>Spagnoliehttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS18&diff=15017Applied/ACMS/absS182018-02-05T14:47:43Z<p>Spagnolie: /* ACMS Abstracts: Spring 2018 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2018 =<br />
<br />
=== Thomas Fai (Harvard) ===<br />
<br />
''The Lubricated Immersed Boundary Method''<br />
<br />
Many real-world examples of fluid-structure interaction, including the transit of red blood cells through the narrow slits in the spleen, involve the near-contact of elastic structures separated by thin layers of fluid. The separation of length scales between these fine lubrication layers and the larger elastic objects poses significant computational challenges. Motivated by the challenge of resolving such multiscale problems, we introduce an immersed boundary method that uses elements of lubrication theory to resolve thin fluid layers between immersed boundaries. We apply this method to two-dimensional flows of increasing complexity, including eccentric rotating cylinders and elastic vesicles near walls in shear flow, to show its increased accuracy compared to the classical immersed boundary method. We present preliminary simulation results of cell suspensions, a problem in which near-contact occurs at multiple levels, such as cell-wall, cell-cell, and intracellular interactions, to highlight the importance of resolving thin fluid layers in order to obtain the correct overall dynamics.<br />
<br />
=== Lee Panetta (Texas A&M) ===<br />
<br />
''Traveling waves and pulsed energy emissions seen in numerical simulations of electromagnetic wave scattering by ice crystals''<br />
<br />
The numerical simulation of single particle scattering of electromagnetic energy plays a fundamental role in remote sensing studies of the atmosphere and oceans, and in efforts to model aerosol "radiative forcing" processes in a wide variety of models of atmospheric and climate dynamics, I will briefly explain the main challenges in the numerical simulation of single particle scattering and describe how work with 3-d simulations of scattering of an incident Gaussian pulse, using a Pseudo-Spectral Time Domain method to numerically solve Maxwell’s Equations, led to an investigation of episodic bursts of energy that were observed at various points in the near field during the decay phase of the simulations. The main focus of the talk will be on simulations in dimensions 1 and 2, simple geometries, and a single refractive index (ice at 550 nanometers). The periodic emission of pulses is easy to understand and predict on the basis of Snell’s laws in the 1-d case considered. In much more interesting 2-d cases, simulations show traveling waves within the crystal that give rise to pulsed emissions of energy when they interact with each other or when they enter regions of high surface curvature. The time-dependent simulations give a more dynamical view of "photonic nanojets" reported earlier in steady-state simulations in other contexts, and of energy release in "morphology-dependent resonances."<br />
<br />
=== Michael Herty (RWTH-Aachen) ===<br />
<br />
''Opinion Formation Models and Mean field Games Techniques''<br />
<br />
Mean-Field Games are games with a continuum of players that incorporate the time dimension through a control-theoretic approach. Recently, simpler approaches relying on reply strategies have been proposed. Based on an example in opinion formation modeling we explore the link between differentiability notions and mean-field game approaches. For numerical purposes a model predictive control framework is introduced consistent with the mean-field game setting that allows for efficient simulation. Numerical examples are also presented as well as stability results on the derived control.<br />
<br />
=== Molei Tao (Georgia Tech) ===<br />
<br />
''Explicit high-order symplectic integration of nonseparable Hamiltonians: algorithms and long time performance''<br />
<br />
Symplectic integrators preserve the phase-space volume and have favorable performances in long time simulations. Methods for an explicit symplectic integration have been extensively studied for separable Hamiltonians (i.e., H(q,p)=K(p)+V(q)), and they lead to both accurate and efficient simulations. However, nonseparable Hamiltonians also model important problems, such as non-Newtonian mechanics and nearly integrable systems in action-angle coordinates. Unfortunately, implicit methods had been the only available symplectic approach for general nonseparable systems.<br />
<br />
This talk will describe a recent result that constructs explicit and arbitrary high-order symplectic integrators for arbitrary Hamiltonians. Based on a mechanical restraint that binds two copies of phase space together, these integrators have good long time performance. More precisely, based on backward error analysis, KAM theory, and some additional multiscale analysis, a pleasant error bound is established for integrable systems. This bound is then demonstrated on a conceptual example and the Schwarzschild geodesics problem. For nonintegrable systems, some numerical experiments with the nonlinear Schrodinger equation will be discussed.<br />
<br />
=== Boualem Khouider (UVic) ===<br />
<br />
''Title TBA''<br />
<br />
Abstract TBA</div>Spagnolie