https://www.math.wisc.edu/wiki/api.php?action=feedcontributions&user=Marko&feedformat=atomUW-Math Wiki - User contributions [en]2020-09-29T19:55:29ZUser contributionsMediaWiki 1.30.1https://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=11833Applied/ACMS2016-04-18T15:48:04Z<p>Marko: /* Spring 2016 */</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 2016 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 22<br />
| [https://sites.google.com/a/eng.ucsd.edu/sgls/ Stefan Llewellyn Smith] (UCSD)<br />
| [[Applied/ACMS/absS16#Stefan Llewellyn-Smith (UCSD)| Hollow vortices]] <br />
| Saverio<br />
|-<br />
| Jan 29<br />
| [http://www.eg.bucknell.edu/physics/solomon.html Tom Solomon] (Bucknell)<br />
| [[Applied/ACMS/absS16#Tom Solomon (Bucknell)| Experimental studies of reaction front barriers in laminar flows ]]<br />
| Jean-Luc and Marko<br />
|-<br />
| Feb 5 <br />
| [http://www.math.ku.dk/~d.cappelletti/ Daniele Cappelletti] (KU) <br />
| [[Applied/ACMS/absS16#Daniele Cappelletti (KU)| Deterministic and stochastic reaction networks ]]<br />
| Craciun<br />
|-<br />
| Feb 12 <br />
| Lihui Chai (UCSB)<br />
| [[Applied/ACMS/absS16#Lihui Chai (UCSB)| Semiclassical limit of the Schrödinger-Poisson-Landau-Lifshitz-Gilbert system ]]<br />
| Qin<br />
|-<br />
| '''Feb 12, 4pm, B239'''<br />
|[http://www.math.cmu.edu/~gautam/sj/index.html Gautam Iyer] (CMU) <br />
| [[Colloquia#February 12: Gautam Iyer (CMU)| Homogenization and Anomalous Diffusion]]<br />
| Jean-Luc<br />
|-<br />
| Feb 19 <br />
| [http://directory.engr.wisc.edu/me/Faculty/Roldan-alzate_Alejandro/ Alejandro Roldán-Alzate] (UW) <br />
| [[Applied/ACMS/absS16#Alejandro Roldan-Alzate (UW)| Non–invasive patient-specific cardiovascular fluid dynamics]]<br />
| Saverio<br />
|-<br />
| Feb 26 <br />
| [http://math.sjtu.edu.cn/Showteacher.aspx?id=19&info_lb=98 Yachun Li] (SJTU)<br />
| [[Applied/ACMS/absS16#Yachun Li (SJTU)| Vanishing viscosity limit of the compressible Isentropic Navier-Stokes equations with degenerate viscosities]] <br />
| Shi Jin<br />
|-<br />
| ''' Mar 4, 4pm, B239'''<br />
|[http://www.columbia.edu/~gb2030/ Guillaume Bal] (Columbia University)<br />
|[[Colloquia#September 11: Guillaume Bal (Columbia University) | Inverse and Control Transport Problems]]<br />
| <!-- host --><br />
|-<br />
| '''Mar 11, 4pm, B239''' <br />
| [http://math.umn.edu/~luskin Mitchell Luskin] (University of Minnesota)<br />
| [[Colloquia#September 11: Mitchell Luskin (University of Minnesota) | Mathematical Modeling of Incommensurate 2D Materials]]<br />
| Li<br />
|-<br />
| Mar 18 <br />
| [https://pantherfile.uwm.edu/hinow/www/ Peter Hinow] (UW-Milwaukee)<br />
| [[Applied/ACMS/absS16#Peter Hinow (UW-Milwaukee) | Aspects of mathematical modeling of drug delivery]]<br />
| Saverio<br />
|-<br />
| Mar 25 <br />
| Spring break <br />
| <br />
| <br />
|-<br />
| Apr 8 <br />
| [http://math.mit.edu/~dunkel/ Jörn Dunkel] (MIT)<br />
| [[Applied/ACMS/absS16#Jörn Dunkel (MIT) | Pattern formation in soft and biological matter]] <br />
| Saverio<br />
|-<br />
| Apr 15 <br />
| [http://wid.wisc.edu/research/sysbio/labs/vetsigian-lab/ Kalin Vetsigian] (UW)<br />
| [[Applied/ACMS/absS16#Kalin Vetsigian (UW) | Interactions and dynamics in communities of antibiotic producing bacteria]]<br />
| Saverio<br />
|-<br />
| Apr 19<br />
| [http://www.riken.jp/theobio/en/member/mochi.html Atsushi Mochizuki] (RIKEN, Japan) <br />
| [[Applied/ACMS/absS16#Atsushi Mochizuki (RIKEN, Japan) | Dynamics of complex biological systems determined/controlled by minimal subsets of molecules in regulatory networks]]<br />
| Craciun<br />
|-<br />
| '''Apr 21, 4pm, 901'''<br />
| [http://engineering.ucsb.edu/~mgroup Igor Mezic] (UC Santa Barbara)<br />
| [[Applied/ACMS/absS16#Igor Mezic (UC Santa Barbara) | Koopman Operator Theory in Fluid Mechanics]]<br />
| Budisic, Jean-Luc<br />
|-<br />
| Apr 22 <br />
| [http://wid.wisc.edu/profile/sushmita-roy/ Sushmita Roy] (UW)<br />
| [[Applied/ACMS/absS16#Sushmita Roy (UW) | TBA]]<br />
| Saverio<br />
|-<br />
| '''Apr 29, 4pm, B239''' <br />
| [http://www.physics.upenn.edu/~kamien/kamiengroup/ Randall Kamien] (U Penn)<br />
| [[Applied/ACMS/absS16#Randall Kamien (U Penn) | Liquid crystals and their (algebraic) topology]] <br />
| Saverio<br />
|-<br />
| '''Mon. May 2'''<br />
| [http://www.ing.unitn.it/~toroe/ Eleuterio Toro] (U Trento) <br />
| [[Applied/ACMS/absS16#Eleuterio Toro (U Trento) | A flux splitting approach to a class of hyperbolic systems]] <br />
| Jin<br />
|-<br />
| '''Wed. May 4'''<br />
| [http://perso-math.univ-mlv.fr/users/fermanian.clotilde/index_en.html Clotilde Fermanian Kammerer] (Insmi - CNRS) <br />
| [[Applied/ACMS/absS16#Clotilde Fermanian Kammerer (Insmi - CNRS) | TBA]] <br />
| Jin<br />
|-<br />
| May 6<br />
| [http://calinia.people.cofc.edu/ Annalisa Calini] (College of Charleston) <br />
| [[Applied/ACMS/absS16Annalisa Calini (College of Charleston) | TBA]] <br />
| Gloria Mari-Beffa<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS16&diff=11832Applied/ACMS/absS162016-04-18T15:47:34Z<p>Marko: </p>
<hr />
<div>= ACMS Abstracts: Spring 2016 =<br />
<br />
=== Stefan Llewellyn Smith (UCSD) ===<br />
<br />
''Hollow vortices''<br />
<br />
Hollow vortices are vortices whose interior is at rest. They posses vortex sheets on their boundaries and can be viewed as a desingularization of point vortices. After giving a history of point vortices, we obtain exact solutions for hollow vortices in linear and nonlinear strain and examine the properties of streets of hollow vortices. The former can be viewed as a canonical example of a hollow vortex in an arbitrary flow, and its stability properties depend on a single non-dimensional parameter. In the latter case, we reexamine the hollow vortex street of Baker, Saffman and Sheffield and examine its stability to arbitrary disturbances, and then investigate the double hollow vortex street. Implications and extensions of this work are discussed.<br />
<br />
=== Tom Solomon (Bucknell) ===<br />
<br />
''Experimental studies of reaction front barriers in laminar flows''<br />
<br />
We present studies of the effects of vortex-dominated fluid flows on the motion of reaction fronts produced by the excitable Belousov-Zhabotinsky reaction. The results of these experiments have applications for advection-reaction-diffusion dynamics in a wide range of systems including microfluidic chemical reactors, cellular-scale processes in biological systems, and blooms of phytoplankton in the oceans. To predict the behavior of reaction fronts, we adapt tools used to describe passive mixing.In particular, the concept of an invariant manifold is extended to account for reactive burning. Burning invariant manifolds (BIMs) are predicted as one-way barriers that locally block the motion of reaction fronts. These ideas are tested and illustrated experimentally in a chain of alternating vortices, a spatially-random flow, vortex flows with imposed winds, and a three-dimensional, nested vortex flow. We also discuss the applicability of BIM theory to the motion of bacteria in fluid flows.<br />
<br />
=== Daniele Cappelletti (KU) ===<br />
<br />
''Deterministic and stochastic reaction networks''<br />
<br />
Mathematical models of biochemical reaction networks are of great interest for the analysis of experimental data and theoretical biochemistry. Moreover, such models can be applied in a broader framework than that provided by biology. The classical deterministic model of a reaction network is a system of ordinary differential equations, and the standard stochastic model is a continuous-time Markov chain. A relationship between the dynamics of the two models can be found for compact time intervals, while the asymptotic behaviours of the two models may differ greatly. I will give an overview of these problems and show some recent development.<br />
<br />
=== Lihui Chai (UCSB) ===<br />
<br />
''Semiclassical limit of the Schrödinger-Poisson-Landau-Lifshitz-Gilbert system''<br />
<br />
The Schrödinger-Poisson-Landau-Lifshitz-Gilbert (SPLLG) system is an effective microscopic model that describes the coupling between conduction electron spins and the magnetization in ferromagnetic materials. This system has been used in connection to the study of spin transfer and magnetization reversal in ferromagnetic materials. In this paper, we rigorously derive the Vlasov-Poisson-Landau-Lifshitz-Glibert system as the semiclassical limit of SPLLG. The major difficulties come from the presence of the spin-magnetization coupling and the discontinuities of the magnetization at the boundary of the material. To overcome these difficulties, we first take the semiclassical limit (vanishing Planck constant) of a smoothed SPLLG system, and then the limit of vanishing smoothing parameter. As a byproduct, we prove the local existence and uniqueness of classical solutions to the smoothed SPLLG system.<br />
<br />
=== Alejandro Roldan-Alzate (UW) ===<br />
<br />
''Non–invasive patient-specific cardiovascular fluid dynamics''<br />
<br />
Comprehensive characterization and quantification of blood flow is essential for understanding the function of the cardiovascular system under normal and diseased conditions. This provides important information not only for the diagnosis and treatment planning of different cardiovascular diseases but also for the design of cardiovascular devices. However, the anatomical complexity and multidirectional nature of physiological and pathological hemodynamics makes non-invasive characterization and quantification of blood flow difficult and challenging. Doppler ultrasound, a standard imaging technique, is limited to providing information on large vessels and calculating instantaneous average flow within the cardiac cycle. Magnetic resonance imaging (MRI) is increasingly being used for fluid dynamics analyses of cardiovascular diseases, including pulmonary arterial hypertension, portal hypertension and congenital heart diseases. Although two-dimensional (2D) phase contrast (PC) magnetic resonance imaging (MRI) measures velocity across a plane, it is still limited in its ability to fully characterize these complex flow systems. Four- dimensional (4D) flow MRI obtains velocity measurements in three dimensions throughout the entire cardiac cycle. Several attempts have been made to non-invasively characterize the blood flow dynamics of different cardiovascular diseases using the combination of medical imaging and computational fluid dynamics modeling (CFD). Idealized geometries, as well as patient-specific anatomies, have been used for computational simulations, which have improved the understanding of the fluid dynamics phenomena in different vascular territories. While CFD modeling can provide powerful insights and the potential for simulating different physiological and pathological conditions in the cardiovascular system, it is currently not reliable for use in clinical care. Based on different studies, additional work is needed to verify the accuracy of current CFD approaches or identify and address current shortcomings. The overall purpose of this research is to develop, implement and validate non-invasive flow analysis methodologies to assess cardiovascular flow dynamics, using a combination of 4D flow MRI, numerical simulations and patient-specific physical models. In this seminar, multidisciplinary work will be presented first, where different cardiovascular pathologies have been studied, such as congenital heart disease and portal hypertension using in vivo, in vitro and computational models. Second, some advances will be presented and a future outlook into the valuable contribution of engineering in the medical imaging and diagnostic technology will be provided.<br />
<br />
=== Yachun Li (SJTU) ===<br />
<br />
''Vanishing viscosity limit of the compressible Isentropic Navier-Stokes equations with degenerate viscosities''<br />
<br />
In this talk we first establish the local-in-time well-posedness of the unique regular solution to the compressible isentropic Navier-Stokes equations with density-dependent viscosities in a power law and with vacuum appearing in some open set or at the far field, then after establishing uniform energy-type estimates with respect to the viscosity coefficients for the regular solutions we prove the convergence of the regular solution of the Navier-Stokes equations to that of the Euler equations with arbitrarily large data containing vacuum.<br />
<br />
=== Peter Hinow (UW-Milwaukee) ===<br />
<br />
''Aspects of mathematical modeling of drug delivery''<br />
<br />
There are a variety of devices for the delivery of pharmaceutical substances, tablets of course being the most prominent. Pharmaceutical scientists and physicians have formulated goals, such as release of a drug in a controlled fashion over an extended period of time or the targeted delivery of a drug to a specific site in a patient’s body. Since experiments with these delivery devices can be costly and sometimes only partially conclusive, mathematical modeling plays a considerable role in understanding the mechanisms behind experimental release profiles, and in developing delivery systems. We present our works on drug delivery by matrix tablets and targeted drug delivery to the brain. This is joint work with Ami Radunskaya (Department of Mathematics, Pomona College, Claremont, CA) and Ian Tucker (School of Pharmacy, University of Otago, Dunedin, New Zealand), and has been supported by NSF grants DMS 1016214 and DMS 1016136 .<br />
<br />
=== Jörn Dunkel (MIT) ===<br />
<br />
''Pattern formation in soft and biological matter''<br />
<br />
Identifying the generic ordering principles that govern multicellular and intracellular dynamics is essential for separating universal from system-specific aspects in the physics of living organisms. In this talk, we will survey and compare three recently proposed nonlinear continuum theories, which aim to describe pattern formation and topological defect structures in soft elastic bilayer materials, dense bacterial suspensions and ATP-driven active liquid crystals. We will discuss the phase diagrams of the three models, relate their predictions to experiments, and emphasize the underlying universality ideas. The good agreement with experimental data supports the idea that non-equilibrium pattern formation in a broad range of soft and active matter systems can be described effectively within the same class of higher-order partial differential equations.<br />
<br />
=== Kalin Vetsigian (UW) ===<br />
<br />
''Interactions and dynamics in communities of antibiotic producing bacteria''<br />
<br />
How microbial diversity is generated and maintained is a fundamental ecological question that can be studied through laboratory microcosm experiments and mathematical modeling. We developed a platform for measuring interactions and dynamics in communities of antibiotic producing bacteria and examined patterns of microbial interactions and frequency-dependent selection. We discovered high levels of antibiotic inhibition, high levels of antibiotic degradation, and frequent bistability among pairs of strains. This data led to the theoretical realization that the interplay between antibiotic production and degradation can lead to robust diversity maintenance through simple motifs that contain bistable pairs. Further computer simulations showed that evolution of antibiotic production and degradation capabilities can lead to spontaneous emergence of diversity and complex eco-evolutionary dynamics in simple environments with a single food source.<br />
<br />
=== Atsushi Mochizuki (RIKEN, Japan) ===<br />
<br />
''Dynamics of complex biological systems determined/controlled by minimal subsets of molecules in regulatory networks''<br />
<br />
Modern biology provides many networks describing regulations between a large number of species of molecules. It is widely believed that the dynamics of molecular activities based on such regulatory networks are the origin of biological functions. In this study we develop a new theory to provide an important aspect of dynamics from information of regulatory linkages alone. We show that the "feedback vertex set" (FVS) of a regulatory network is a set of "determining nodes" of the dynamics. It assures that (i) any long-term dynamical behavior of the whole system, such as steady states, periodic oscillations or quasi-periodic oscillations, can be identified by measurements of a subset of molecules in the network, and that (ii) the subset is determined from the regulatory linkage alone. For example, dynamical attractors possibly generated by a signal transduction network with 113 molecules can be identified by measurement of the activity of only 5 molecules, if the information on the network structure is correct. We also demonstrate that controlling the dynamics of the FVS is sufficient to switch the dynamics of the whole system from one attractor to others, distinct from the original.<br />
<br />
Further Reading:<br />
<br />
Mochizuki A., Fiedler B., Kurosawa G. and Saito D. (2013) Dynamics and control at feedback vertex sets. J. Theor. Biol. 335: 130-146.<br />
<br />
=== Igor Mezic (UC Santa Barbara) ===<br />
<br />
''Koopman Operator Theory in Fluid Mechanics''<br />
<br />
There is long history of contributions to modal representation of nonlinear fluid flows, including global modes, triple decomposition and Proper Orthogonal Decomposition. Recently, a spectral decomposition relying on Koopman operator theory has attracted interest in the fluid mechanics community. Part of the attractiveness of the Koopman operator approach stems from ability to compute the modes from relatively simple algorithms such as the Dynamic Mode Decomposition (DMD). To make a connection between the two, we show an explicit relationship between a basic version of the Dynamic Mode Decomposition (DMD) and the Koopman Mode Decomposition (KMD) of dynamical systems, that allows for estimates of validity of approximation of Koopman modes by DMD modes, and in the process introduce the notion of Generalized Laplace analysis that enables the underlying calculations. We also discuss the notion of exact solutions and Resolvent Mode Decomposition in connection with Koopman Modes. In addition, traditionally the accuracy of decomposition methods has been tested by comparing the flow with its modal approximation in quadratic norm sense. We will discuss an alternative approach that incorporates recent advances in characterizing kinematics of aperiodic-in-time flows on finite time-scales by using the concept of mesohyperbolicity. This coupling of Koopman Mode Decomposition and Mesohyperbolicity Theory enables us to start utilizing dynamical systems theories of mixing in the context of flows with non-periodic time dependence.<br />
<br />
=== Randall Kamien (U Penn) ===<br />
<br />
''Liquid crystals and their (algebraic) topology''<br />
<br />
Liquid Crystals, the materials in your iPhone, are complex materials with varying degrees of internal order. I will discuss and demonstrate how algebraic topology can be used to identify and characterize long-lived configurations. I will also describe how conic sections naturally arise in these structures as intersections of simple polynomials.<br />
<br />
=== Eleuterio Toro (U Trento) ===<br />
<br />
''A flux splitting approach to a class of hyperbolic systems'' <br />
<br />
This talk is based on a recently proposed flux vector splitting method for the Euler equations which, compared to existing splitting methods, has some distinctive advantages, such as exact recognition of stationary isolated contact/shear waves, simplicity, robustness and efficiency. Distinguishing features of the new flux splitting approach are: complete separation of pressure from advection terms and identification of a reduced pressure system that furnishes all required information for constructing the full numerical flux in a simple manner. The resulting first-order method was originally proposed for the 1D Euler equations for ideal gases. In this talk I will first present the scheme as applied to the 3D Euler equations with general equation of state. Then I shall describe its extension to high-order of accuracy in both space and time, on unstructured meshes, using the ADER approach. Performance of the resulting method is illustrated through some carefully chosen test problems. I finish this presentation by mentioning extensions of this novel flux splitting approach to other hyperbolic systems, such as the MHD equations and the Baer-Nunziato equations for compressible multiphase flows.</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS16&diff=11823Applied/ACMS/absS162016-04-15T17:56:51Z<p>Marko: /* ACMS Abstracts: Spring 2016 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2016 =<br />
<br />
=== Stefan Llewellyn Smith (UCSD) ===<br />
<br />
''Hollow vortices''<br />
<br />
Hollow vortices are vortices whose interior is at rest. They posses vortex sheets on their boundaries and can be viewed as a desingularization of point vortices. After giving a history of point vortices, we obtain exact solutions for hollow vortices in linear and nonlinear strain and examine the properties of streets of hollow vortices. The former can be viewed as a canonical example of a hollow vortex in an arbitrary flow, and its stability properties depend on a single non-dimensional parameter. In the latter case, we reexamine the hollow vortex street of Baker, Saffman and Sheffield and examine its stability to arbitrary disturbances, and then investigate the double hollow vortex street. Implications and extensions of this work are discussed.<br />
<br />
=== Tom Solomon (Bucknell) ===<br />
<br />
''Experimental studies of reaction front barriers in laminar flows''<br />
<br />
We present studies of the effects of vortex-dominated fluid flows on the motion of reaction fronts produced by the excitable Belousov-Zhabotinsky reaction. The results of these experiments have applications for advection-reaction-diffusion dynamics in a wide range of systems including microfluidic chemical reactors, cellular-scale processes in biological systems, and blooms of phytoplankton in the oceans. To predict the behavior of reaction fronts, we adapt tools used to describe passive mixing.In particular, the concept of an invariant manifold is extended to account for reactive burning. Burning invariant manifolds (BIMs) are predicted as one-way barriers that locally block the motion of reaction fronts. These ideas are tested and illustrated experimentally in a chain of alternating vortices, a spatially-random flow, vortex flows with imposed winds, and a three-dimensional, nested vortex flow. We also discuss the applicability of BIM theory to the motion of bacteria in fluid flows.<br />
<br />
=== Daniele Cappelletti (KU) ===<br />
<br />
''Deterministic and stochastic reaction networks''<br />
<br />
Mathematical models of biochemical reaction networks are of great interest for the analysis of experimental data and theoretical biochemistry. Moreover, such models can be applied in a broader framework than that provided by biology. The classical deterministic model of a reaction network is a system of ordinary differential equations, and the standard stochastic model is a continuous-time Markov chain. A relationship between the dynamics of the two models can be found for compact time intervals, while the asymptotic behaviours of the two models may differ greatly. I will give an overview of these problems and show some recent development.<br />
<br />
=== Lihui Chai (UCSB) ===<br />
<br />
''Semiclassical limit of the Schrödinger-Poisson-Landau-Lifshitz-Gilbert system''<br />
<br />
The Schrödinger-Poisson-Landau-Lifshitz-Gilbert (SPLLG) system is an effective microscopic model that describes the coupling between conduction electron spins and the magnetization in ferromagnetic materials. This system has been used in connection to the study of spin transfer and magnetization reversal in ferromagnetic materials. In this paper, we rigorously derive the Vlasov-Poisson-Landau-Lifshitz-Glibert system as the semiclassical limit of SPLLG. The major difficulties come from the presence of the spin-magnetization coupling and the discontinuities of the magnetization at the boundary of the material. To overcome these difficulties, we first take the semiclassical limit (vanishing Planck constant) of a smoothed SPLLG system, and then the limit of vanishing smoothing parameter. As a byproduct, we prove the local existence and uniqueness of classical solutions to the smoothed SPLLG system.<br />
<br />
=== Alejandro Roldan-Alzate (UW) ===<br />
<br />
''Non–invasive patient-specific cardiovascular fluid dynamics''<br />
<br />
Comprehensive characterization and quantification of blood flow is essential for understanding the function of the cardiovascular system under normal and diseased conditions. This provides important information not only for the diagnosis and treatment planning of different cardiovascular diseases but also for the design of cardiovascular devices. However, the anatomical complexity and multidirectional nature of physiological and pathological hemodynamics makes non-invasive characterization and quantification of blood flow difficult and challenging. Doppler ultrasound, a standard imaging technique, is limited to providing information on large vessels and calculating instantaneous average flow within the cardiac cycle. Magnetic resonance imaging (MRI) is increasingly being used for fluid dynamics analyses of cardiovascular diseases, including pulmonary arterial hypertension, portal hypertension and congenital heart diseases. Although two-dimensional (2D) phase contrast (PC) magnetic resonance imaging (MRI) measures velocity across a plane, it is still limited in its ability to fully characterize these complex flow systems. Four- dimensional (4D) flow MRI obtains velocity measurements in three dimensions throughout the entire cardiac cycle. Several attempts have been made to non-invasively characterize the blood flow dynamics of different cardiovascular diseases using the combination of medical imaging and computational fluid dynamics modeling (CFD). Idealized geometries, as well as patient-specific anatomies, have been used for computational simulations, which have improved the understanding of the fluid dynamics phenomena in different vascular territories. While CFD modeling can provide powerful insights and the potential for simulating different physiological and pathological conditions in the cardiovascular system, it is currently not reliable for use in clinical care. Based on different studies, additional work is needed to verify the accuracy of current CFD approaches or identify and address current shortcomings. The overall purpose of this research is to develop, implement and validate non-invasive flow analysis methodologies to assess cardiovascular flow dynamics, using a combination of 4D flow MRI, numerical simulations and patient-specific physical models. In this seminar, multidisciplinary work will be presented first, where different cardiovascular pathologies have been studied, such as congenital heart disease and portal hypertension using in vivo, in vitro and computational models. Second, some advances will be presented and a future outlook into the valuable contribution of engineering in the medical imaging and diagnostic technology will be provided.<br />
<br />
=== Yachun Li (SJTU) ===<br />
<br />
''Vanishing viscosity limit of the compressible Isentropic Navier-Stokes equations with degenerate viscosities''<br />
<br />
In this talk we first establish the local-in-time well-posedness of the unique regular solution to the compressible isentropic Navier-Stokes equations with density-dependent viscosities in a power law and with vacuum appearing in some open set or at the far field, then after establishing uniform energy-type estimates with respect to the viscosity coefficients for the regular solutions we prove the convergence of the regular solution of the Navier-Stokes equations to that of the Euler equations with arbitrarily large data containing vacuum.<br />
<br />
=== Peter Hinow (UW-Milwaukee) ===<br />
<br />
''Aspects of mathematical modeling of drug delivery''<br />
<br />
There are a variety of devices for the delivery of pharmaceutical substances, tablets of course being the most prominent. Pharmaceutical scientists and physicians have formulated goals, such as release of a drug in a controlled fashion over an extended period of time or the targeted delivery of a drug to a specific site in a patient’s body. Since experiments with these delivery devices can be costly and sometimes only partially conclusive, mathematical modeling plays a considerable role in understanding the mechanisms behind experimental release profiles, and in developing delivery systems. We present our works on drug delivery by matrix tablets and targeted drug delivery to the brain. This is joint work with Ami Radunskaya (Department of Mathematics, Pomona College, Claremont, CA) and Ian Tucker (School of Pharmacy, University of Otago, Dunedin, New Zealand), and has been supported by NSF grants DMS 1016214 and DMS 1016136 .<br />
<br />
=== Jörn Dunkel (MIT) ===<br />
<br />
''Pattern formation in soft and biological matter''<br />
<br />
Identifying the generic ordering principles that govern multicellular and intracellular dynamics is essential for separating universal from system-specific aspects in the physics of living organisms. In this talk, we will survey and compare three recently proposed nonlinear continuum theories, which aim to describe pattern formation and topological defect structures in soft elastic bilayer materials, dense bacterial suspensions and ATP-driven active liquid crystals. We will discuss the phase diagrams of the three models, relate their predictions to experiments, and emphasize the underlying universality ideas. The good agreement with experimental data supports the idea that non-equilibrium pattern formation in a broad range of soft and active matter systems can be described effectively within the same class of higher-order partial differential equations.<br />
<br />
=== Kalin Vetsigian (UW) ===<br />
<br />
''Interactions and dynamics in communities of antibiotic producing bacteria''<br />
<br />
How microbial diversity is generated and maintained is a fundamental ecological question that can be studied through laboratory microcosm experiments and mathematical modeling. We developed a platform for measuring interactions and dynamics in communities of antibiotic producing bacteria and examined patterns of microbial interactions and frequency-dependent selection. We discovered high levels of antibiotic inhibition, high levels of antibiotic degradation, and frequent bistability among pairs of strains. This data led to the theoretical realization that the interplay between antibiotic production and degradation can lead to robust diversity maintenance through simple motifs that contain bistable pairs. Further computer simulations showed that evolution of antibiotic production and degradation capabilities can lead to spontaneous emergence of diversity and complex eco-evolutionary dynamics in simple environments with a single food source.<br />
<br />
=== Atsushi Mochizuki (RIKEN, Japan) ===<br />
<br />
''Dynamics of complex biological systems determined/controlled by minimal subsets of molecules in regulatory networks''<br />
<br />
Modern biology provides many networks describing regulations between a large number of species of molecules. It is widely believed that the dynamics of molecular activities based on such regulatory networks are the origin of biological functions. In this study we develop a new theory to provide an important aspect of dynamics from information of regulatory linkages alone. We show that the "feedback vertex set" (FVS) of a regulatory network is a set of "determining nodes" of the dynamics. It assures that (i) any long-term dynamical behavior of the whole system, such as steady states, periodic oscillations or quasi-periodic oscillations, can be identified by measurements of a subset of molecules in the network, and that (ii) the subset is determined from the regulatory linkage alone. For example, dynamical attractors possibly generated by a signal transduction network with 113 molecules can be identified by measurement of the activity of only 5 molecules, if the information on the network structure is correct. We also demonstrate that controlling the dynamics of the FVS is sufficient to switch the dynamics of the whole system from one attractor to others, distinct from the original.<br />
<br />
Further Reading:<br />
<br />
Mochizuki A., Fiedler B., Kurosawa G. and Saito D. (2013) Dynamics and control at feedback vertex sets. J. Theor. Biol. 335: 130-146.<br />
<br />
=== Igor Mezic (UC Santa Barbara) ===<br />
TBA<br />
<br />
=== Randall Kamien (U Penn) ===<br />
<br />
''Liquid crystals and their (algebraic) topology''<br />
<br />
Liquid Crystals, the materials in your iPhone, are complex materials with varying degrees of internal order. I will discuss and demonstrate how algebraic topology can be used to identify and characterize long-lived configurations. I will also describe how conic sections naturally arise in these structures as intersections of simple polynomials.<br />
<br />
=== Eleuterio Toro (U Trento) ===<br />
<br />
''A flux splitting approach to a class of hyperbolic systems'' <br />
<br />
This talk is based on a recently proposed flux vector splitting method for the Euler equations which, compared to existing splitting methods, has some distinctive advantages, such as exact recognition of stationary isolated contact/shear waves, simplicity, robustness and efficiency. Distinguishing features of the new flux splitting approach are: complete separation of pressure from advection terms and identification of a reduced pressure system that furnishes all required information for constructing the full numerical flux in a simple manner. The resulting first-order method was originally proposed for the 1D Euler equations for ideal gases. In this talk I will first present the scheme as applied to the 3D Euler equations with general equation of state. Then I shall describe its extension to high-order of accuracy in both space and time, on unstructured meshes, using the ADER approach. Performance of the resulting method is illustrated through some carefully chosen test problems. I finish this presentation by mentioning extensions of this novel flux splitting approach to other hyperbolic systems, such as the MHD equations and the Baer-Nunziato equations for compressible multiphase flows.</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=11770Applied/ACMS2016-04-08T21:52:31Z<p>Marko: /* Spring 2016 */</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 2016 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 22<br />
| [https://sites.google.com/a/eng.ucsd.edu/sgls/ Stefan Llewellyn Smith] (UCSD)<br />
| [[Applied/ACMS/absS16#Stefan Llewellyn-Smith (UCSD)| Hollow vortices]] <br />
| Saverio<br />
|-<br />
| Jan 29<br />
| [http://www.eg.bucknell.edu/physics/solomon.html Tom Solomon] (Bucknell)<br />
| [[Applied/ACMS/absS16#Tom Solomon (Bucknell)| Experimental studies of reaction front barriers in laminar flows ]]<br />
| Jean-Luc and Marko<br />
|-<br />
| Feb 5 <br />
| [http://www.math.ku.dk/~d.cappelletti/ Daniele Cappelletti] (KU) <br />
| [[Applied/ACMS/absS16#Daniele Cappelletti (KU)| Deterministic and stochastic reaction networks ]]<br />
| Craciun<br />
|-<br />
| Feb 12 <br />
| Lihui Chai (UCSB)<br />
| [[Applied/ACMS/absS16#Lihui Chai (UCSB)| Semiclassical limit of the Schrödinger-Poisson-Landau-Lifshitz-Gilbert system ]]<br />
| Qin<br />
|-<br />
| '''Feb 12, 4pm, B239'''<br />
|[http://www.math.cmu.edu/~gautam/sj/index.html Gautam Iyer] (CMU) <br />
| [[Colloquia#February 12: Gautam Iyer (CMU)| Homogenization and Anomalous Diffusion]]<br />
| Jean-Luc<br />
|-<br />
| Feb 19 <br />
| [http://directory.engr.wisc.edu/me/Faculty/Roldan-alzate_Alejandro/ Alejandro Roldán-Alzate] (UW) <br />
| [[Applied/ACMS/absS16#Alejandro Roldan-Alzate (UW)| Non–invasive patient-specific cardiovascular fluid dynamics]]<br />
| Saverio<br />
|-<br />
| Feb 26 <br />
| [http://math.sjtu.edu.cn/Showteacher.aspx?id=19&info_lb=98 Yachun Li] (SJTU)<br />
| [[Applied/ACMS/absS16#Yachun Li (SJTU)| Vanishing viscosity limit of the compressible Isentropic Navier-Stokes equations with degenerate viscosities]] <br />
| Shi Jin<br />
|-<br />
| ''' Mar 4, 4pm, B239'''<br />
|[http://www.columbia.edu/~gb2030/ Guillaume Bal] (Columbia University)<br />
|[[Colloquia#September 11: Guillaume Bal (Columbia University) | Inverse and Control Transport Problems]]<br />
| <!-- host --><br />
|-<br />
| '''Mar 11, 4pm, B239''' <br />
| [http://math.umn.edu/~luskin Mitchell Luskin] (University of Minnesota)<br />
| [[Colloquia#September 11: Mitchell Luskin (University of Minnesota) | Mathematical Modeling of Incommensurate 2D Materials]]<br />
| Li<br />
|-<br />
| Mar 18 <br />
| [https://pantherfile.uwm.edu/hinow/www/ Peter Hinow] (UW-Milwaukee)<br />
| [[Applied/ACMS/absS16#Peter Hinow (UW-Milwaukee) | Aspects of mathematical modeling of drug delivery]]<br />
| Saverio<br />
|-<br />
| Mar 25 <br />
| Spring break <br />
| <br />
| <br />
|-<br />
| Apr 8 <br />
| [http://math.mit.edu/~dunkel/ Jörn Dunkel] (MIT)<br />
| [[Applied/ACMS/absS16#Jörn Dunkel (MIT) | Pattern formation in soft and biological matter]] <br />
| Saverio<br />
|-<br />
| Apr 15 <br />
| [http://wid.wisc.edu/research/sysbio/labs/vetsigian-lab/ Kalin Vetsigian] (UW)<br />
| [[Applied/ACMS/absS16#Kalin Vetsigian (UW) | Interactions and dynamics in communities of antibiotic producing bacteria]]<br />
| Saverio<br />
|-<br />
| Apr 19<br />
| [http://www.riken.jp/theobio/en/member/mochi.html Atsushi Mochizuki] (RIKEN, Japan) <br />
| [[Applied/ACMS/absS16#Atsushi Mochizuki (RIKEN, Japan) | Dynamics of complex biological systems determined/controlled by minimal subsets of molecules in regulatory networks]]<br />
| Craciun<br />
|-<br />
| Apr 21<br />
| [http://engineering.ucsb.edu/~mgroup Igor Mezic] (UC Santa Barbara)<br />
| [[Applied/ACMS/absS16#Igor Mezic (UC Santa Barbara) | TBA]]<br />
| Thiffeault, Budisic<br />
|-<br />
| Apr 22 <br />
| [http://wid.wisc.edu/profile/sushmita-roy/ Sushmita Roy] (UW)<br />
| [[Applied/ACMS/absS16#Sushmita Roy (UW) | TBA]]<br />
| Saverio<br />
|-<br />
| '''Apr 29, 4pm, B239''' <br />
| [http://www.physics.upenn.edu/~kamien/kamiengroup/ Randall Kamien] (U Penn)<br />
| [[Applied/ACMS/absS16#Randall Kamien (U Penn) | Liquid crystals and their (algebraic) topology]] <br />
| Saverio<br />
|-<br />
| '''Mon. May 2'''<br />
| [http://www.ing.unitn.it/~toroe/ Eleuterio Toro] (U Trento) <br />
| [[Applied/ACMS/absS16#Eleuterio Toro (U Trento) | A flux splitting approach to a class of hyperbolic systems]] <br />
| Jin<br />
|-<br />
| '''Wed. May 4'''<br />
| [http://perso-math.univ-mlv.fr/users/fermanian.clotilde/index_en.html Clotilde Fermanian Kammerer] (Insmi - CNRS) <br />
| [[Applied/ACMS/absS16#Clotilde Fermanian Kammerer (Insmi - CNRS) | TBA]] <br />
| Jin<br />
|-<br />
| May 6<br />
| [http://calinia.people.cofc.edu/ Annalisa Calini] (College of Charleston) <br />
| [[Applied/ACMS/absS16Annalisa Calini (College of Charleston) | TBA]] <br />
| Gloria Mari-Beffa<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=11769Applied/ACMS2016-04-08T21:13:18Z<p>Marko: /* Spring 2016 */</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 2016 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 22<br />
| [https://sites.google.com/a/eng.ucsd.edu/sgls/ Stefan Llewellyn Smith] (UCSD)<br />
| [[Applied/ACMS/absS16#Stefan Llewellyn-Smith (UCSD)| Hollow vortices]] <br />
| Saverio<br />
|-<br />
| Jan 29<br />
| [http://www.eg.bucknell.edu/physics/solomon.html Tom Solomon] (Bucknell)<br />
| [[Applied/ACMS/absS16#Tom Solomon (Bucknell)| Experimental studies of reaction front barriers in laminar flows ]]<br />
| Jean-Luc and Marko<br />
|-<br />
| Feb 5 <br />
| [http://www.math.ku.dk/~d.cappelletti/ Daniele Cappelletti] (KU) <br />
| [[Applied/ACMS/absS16#Daniele Cappelletti (KU)| Deterministic and stochastic reaction networks ]]<br />
| Craciun<br />
|-<br />
| Feb 12 <br />
| Lihui Chai (UCSB)<br />
| [[Applied/ACMS/absS16#Lihui Chai (UCSB)| Semiclassical limit of the Schrödinger-Poisson-Landau-Lifshitz-Gilbert system ]]<br />
| Qin<br />
|-<br />
| '''Feb 12, 4pm, B239'''<br />
|[http://www.math.cmu.edu/~gautam/sj/index.html Gautam Iyer] (CMU) <br />
| [[Colloquia#February 12: Gautam Iyer (CMU)| Homogenization and Anomalous Diffusion]]<br />
| Jean-Luc<br />
|-<br />
| Feb 19 <br />
| [http://directory.engr.wisc.edu/me/Faculty/Roldan-alzate_Alejandro/ Alejandro Roldán-Alzate] (UW) <br />
| [[Applied/ACMS/absS16#Alejandro Roldan-Alzate (UW)| Non–invasive patient-specific cardiovascular fluid dynamics]]<br />
| Saverio<br />
|-<br />
| Feb 26 <br />
| [http://math.sjtu.edu.cn/Showteacher.aspx?id=19&info_lb=98 Yachun Li] (SJTU)<br />
| [[Applied/ACMS/absS16#Yachun Li (SJTU)| Vanishing viscosity limit of the compressible Isentropic Navier-Stokes equations with degenerate viscosities]] <br />
| Shi Jin<br />
|-<br />
| ''' Mar 4, 4pm, B239'''<br />
|[http://www.columbia.edu/~gb2030/ Guillaume Bal] (Columbia University)<br />
|[[Colloquia#September 11: Guillaume Bal (Columbia University) | Inverse and Control Transport Problems]]<br />
| <!-- host --><br />
|-<br />
| '''Mar 11, 4pm, B239''' <br />
| [http://math.umn.edu/~luskin Mitchell Luskin] (University of Minnesota)<br />
| [[Colloquia#September 11: Mitchell Luskin (University of Minnesota) | Mathematical Modeling of Incommensurate 2D Materials]]<br />
| Li<br />
|-<br />
| Mar 18 <br />
| [https://pantherfile.uwm.edu/hinow/www/ Peter Hinow] (UW-Milwaukee)<br />
| [[Applied/ACMS/absS16#Peter Hinow (UW-Milwaukee) | Aspects of mathematical modeling of drug delivery]]<br />
| Saverio<br />
|-<br />
| Mar 25 <br />
| Spring break <br />
| <br />
| <br />
|-<br />
| Apr 8 <br />
| [http://math.mit.edu/~dunkel/ Jörn Dunkel] (MIT)<br />
| [[Applied/ACMS/absS16#Jörn Dunkel (MIT) | Pattern formation in soft and biological matter]] <br />
| Saverio<br />
|-<br />
| Apr 15 <br />
| [http://wid.wisc.edu/research/sysbio/labs/vetsigian-lab/ Kalin Vetsigian] (UW)<br />
| [[Applied/ACMS/absS16#Kalin Vetsigian (UW) | Interactions and dynamics in communities of antibiotic producing bacteria]]<br />
| Saverio<br />
|-<br />
| Apr 19<br />
| [http://www.riken.jp/theobio/en/member/mochi.html Atsushi Mochizuki] (RIKEN, Japan) <br />
| [[Applied/ACMS/absS16#Atsushi Mochizuki (RIKEN, Japan) | Dynamics of complex biological systems determined/controlled by minimal subsets of molecules in regulatory networks]]<br />
| Craciun<br />
|-<br />
| Apr 21<br />
| [http://engineering.ucsb.edu/~mezic Igor Mezic] (UC Santa Barbara)<br />
| [[Applied/ACMS/absS16#Igor Mezic (UC Santa Barbara) | TBA]]<br />
| Thiffeault, Budisic<br />
|-<br />
| Apr 22 <br />
| [http://wid.wisc.edu/profile/sushmita-roy/ Sushmita Roy] (UW)<br />
| [[Applied/ACMS/absS16#Sushmita Roy (UW) | TBA]]<br />
| Saverio<br />
|-<br />
| '''Apr 29, 4pm, B239''' <br />
| [http://www.physics.upenn.edu/~kamien/kamiengroup/ Randall Kamien] (U Penn)<br />
| [[Applied/ACMS/absS16#Randall Kamien (U Penn) | Liquid crystals and their (algebraic) topology]] <br />
| Saverio<br />
|-<br />
| '''Mon. May 2'''<br />
| [http://www.ing.unitn.it/~toroe/ Eleuterio Toro] (U Trento) <br />
| [[Applied/ACMS/absS16#Eleuterio Toro (U Trento) | A flux splitting approach to a class of hyperbolic systems]] <br />
| Jin<br />
|-<br />
| '''Wed. May 4'''<br />
| [http://perso-math.univ-mlv.fr/users/fermanian.clotilde/index_en.html Clotilde Fermanian Kammerer] (Insmi - CNRS) <br />
| [[Applied/ACMS/absS16#Clotilde Fermanian Kammerer (Insmi - CNRS) | TBA]] <br />
| Jin<br />
|-<br />
| May 6<br />
| [http://calinia.people.cofc.edu/ Annalisa Calini] (College of Charleston) <br />
| [[Applied/ACMS/absS16Annalisa Calini (College of Charleston) | TBA]] <br />
| Gloria Mari-Beffa<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=11768Applied/ACMS2016-04-08T21:12:43Z<p>Marko: /* Spring 2016 */</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 2016 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 22<br />
| [https://sites.google.com/a/eng.ucsd.edu/sgls/ Stefan Llewellyn Smith] (UCSD)<br />
| [[Applied/ACMS/absS16#Stefan Llewellyn-Smith (UCSD)| Hollow vortices]] <br />
| Saverio<br />
|-<br />
| Jan 29<br />
| [http://www.eg.bucknell.edu/physics/solomon.html Tom Solomon] (Bucknell)<br />
| [[Applied/ACMS/absS16#Tom Solomon (Bucknell)| Experimental studies of reaction front barriers in laminar flows ]]<br />
| Jean-Luc and Marko<br />
|-<br />
| Feb 5 <br />
| [http://www.math.ku.dk/~d.cappelletti/ Daniele Cappelletti] (KU) <br />
| [[Applied/ACMS/absS16#Daniele Cappelletti (KU)| Deterministic and stochastic reaction networks ]]<br />
| Craciun<br />
|-<br />
| Feb 12 <br />
| Lihui Chai (UCSB)<br />
| [[Applied/ACMS/absS16#Lihui Chai (UCSB)| Semiclassical limit of the Schrödinger-Poisson-Landau-Lifshitz-Gilbert system ]]<br />
| Qin<br />
|-<br />
| '''Feb 12, 4pm, B239'''<br />
|[http://www.math.cmu.edu/~gautam/sj/index.html Gautam Iyer] (CMU) <br />
| [[Colloquia#February 12: Gautam Iyer (CMU)| Homogenization and Anomalous Diffusion]]<br />
| Jean-Luc<br />
|-<br />
| Feb 19 <br />
| [http://directory.engr.wisc.edu/me/Faculty/Roldan-alzate_Alejandro/ Alejandro Roldán-Alzate] (UW) <br />
| [[Applied/ACMS/absS16#Alejandro Roldan-Alzate (UW)| Non–invasive patient-specific cardiovascular fluid dynamics]]<br />
| Saverio<br />
|-<br />
| Feb 26 <br />
| [http://math.sjtu.edu.cn/Showteacher.aspx?id=19&info_lb=98 Yachun Li] (SJTU)<br />
| [[Applied/ACMS/absS16#Yachun Li (SJTU)| Vanishing viscosity limit of the compressible Isentropic Navier-Stokes equations with degenerate viscosities]] <br />
| Shi Jin<br />
|-<br />
| ''' Mar 4, 4pm, B239'''<br />
|[http://www.columbia.edu/~gb2030/ Guillaume Bal] (Columbia University)<br />
|[[Colloquia#September 11: Guillaume Bal (Columbia University) | Inverse and Control Transport Problems]]<br />
| <!-- host --><br />
|-<br />
| '''Mar 11, 4pm, B239''' <br />
| [http://math.umn.edu/~luskin Mitchell Luskin] (University of Minnesota)<br />
| [[Colloquia#September 11: Mitchell Luskin (University of Minnesota) | Mathematical Modeling of Incommensurate 2D Materials]]<br />
| Li<br />
|-<br />
| Mar 18 <br />
| [https://pantherfile.uwm.edu/hinow/www/ Peter Hinow] (UW-Milwaukee)<br />
| [[Applied/ACMS/absS16#Peter Hinow (UW-Milwaukee) | Aspects of mathematical modeling of drug delivery]]<br />
| Saverio<br />
|-<br />
| Mar 25 <br />
| Spring break <br />
| <br />
| <br />
|-<br />
| Apr 8 <br />
| [http://math.mit.edu/~dunkel/ Jörn Dunkel] (MIT)<br />
| [[Applied/ACMS/absS16#Jörn Dunkel (MIT) | Pattern formation in soft and biological matter]] <br />
| Saverio<br />
|-<br />
| Apr 15 <br />
| [http://wid.wisc.edu/research/sysbio/labs/vetsigian-lab/ Kalin Vetsigian] (UW)<br />
| [[Applied/ACMS/absS16#Kalin Vetsigian (UW) | Interactions and dynamics in communities of antibiotic producing bacteria]]<br />
| Saverio<br />
|-<br />
| Apr 19<br />
| [http://www.riken.jp/theobio/en/member/mochi.html Atsushi Mochizuki] (RIKEN, Japan) <br />
| [[Applied/ACMS/absS16#Atsushi Mochizuki (RIKEN, Japan) | Dynamics of complex biological systems determined/controlled by minimal subsets of molecules in regulatory networks]]<br />
| Craciun<br />
-<br />
| Apr 21<br />
| [http://engineering.ucsb.edu/~mezic Igor Mezic] (UC Santa Barbara)<br />
| [[Applied/ACMS/absS16#Igor Mezic (UC Santa Barbara) | TBA]]<br />
| Thiffeault, Budisic<br />
|-<br />
| Apr 22 <br />
| [http://wid.wisc.edu/profile/sushmita-roy/ Sushmita Roy] (UW)<br />
| [[Applied/ACMS/absS16#Sushmita Roy (UW) | TBA]]<br />
| Saverio<br />
|-<br />
| '''Apr 29, 4pm, B239''' <br />
| [http://www.physics.upenn.edu/~kamien/kamiengroup/ Randall Kamien] (U Penn)<br />
| [[Applied/ACMS/absS16#Randall Kamien (U Penn) | Liquid crystals and their (algebraic) topology]] <br />
| Saverio<br />
|-<br />
| '''Mon. May 2'''<br />
| [http://www.ing.unitn.it/~toroe/ Eleuterio Toro] (U Trento) <br />
| [[Applied/ACMS/absS16#Eleuterio Toro (U Trento) | A flux splitting approach to a class of hyperbolic systems]] <br />
| Jin<br />
|-<br />
| '''Wed. May 4'''<br />
| [http://perso-math.univ-mlv.fr/users/fermanian.clotilde/index_en.html Clotilde Fermanian Kammerer] (Insmi - CNRS) <br />
| [[Applied/ACMS/absS16#Clotilde Fermanian Kammerer (Insmi - CNRS) | TBA]] <br />
| Jin<br />
|-<br />
| May 6<br />
| [http://calinia.people.cofc.edu/ Annalisa Calini] (College of Charleston) <br />
| [[Applied/ACMS/absS16Annalisa Calini (College of Charleston) | TBA]] <br />
| Gloria Mari-Beffa<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS16&diff=11131Applied/ACMS/absS162016-01-22T15:14:56Z<p>Marko: /* ACMS Abstracts: Spring 2016 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2016 =<br />
<br />
=== Stefan Llewellyn Smith (UCSD) ===<br />
<br />
''Hollow vortices''<br />
<br />
Hollow vortices are vortices whose interior is at rest. They posses vortex sheets on their boundaries and can be viewed as a desingularization of point vortices. After giving a history of point vortices, we obtain exact solutions for hollow vortices in linear and nonlinear strain and examine the properties of streets of hollow vortices. The former can be viewed as a canonical example of a hollow vortex in an arbitrary flow, and its stability properties depend on a single non-dimensional parameter. In the latter case, we reexamine the hollow vortex street of Baker, Saffman and Sheffield and examine its stability to arbitrary disturbances, and then investigate the double hollow vortex street. Implications and extensions of this work are discussed.<br />
<br />
=== Tom Solomon (Bucknell) ===<br />
<br />
''Experimental studies of reaction front barriers in laminar flows''<br />
<br />
We present studies of the effects of vortex-dominated fluid flows on the motion of reaction fronts produced by the excitable Belousov-Zhabotinsky reaction. The results of these experiments have applications for advection-reaction-diffusion dynamics in a wide range of systems including microfluidic chemical reactors, cellular-scale processes in biological systems, and blooms of phytoplankton in the oceans. To predict the behavior of reaction fronts, we adapt tools used to describe passive mixing.In particular, the concept of an invariant manifold is extended to account for reactive burning. Burning invariant manifolds (BIMs) are predicted as one-way barriers that locally block the motion of reaction fronts. These ideas are tested and illustrated experimentally in a chain of alternating vortices, a spatially-random flow, vortex flows with imposed winds, and a three-dimensional, nested vortex flow. We also discuss the applicability of BIM theory to the motion of bacteria in fluid flows.</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=11130Applied/ACMS2016-01-22T15:14:06Z<p>Marko: /* Spring 2016 */</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 2016 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 22<br />
| [https://sites.google.com/a/eng.ucsd.edu/sgls/ Stefan Llewellyn Smith] (UCSD)<br />
| [[Applied/ACMS/absS16#Stefan Llewellyn-Smith (UCSD) | Hollow vortices]] <br />
| Saverio<br />
|-<br />
| Jan 29<br />
| [http://www.eg.bucknell.edu/physics/solomon.html Tom Solomon] (Bucknell)<br />
| [[Applied/ACMS/absS16#Tom Solomon (Bucknell) | Experimental studies of reaction front barriers in laminar flows ]]<br />
| Jean-Luc and Marko<br />
|-<br />
| Feb 5 <br />
| [http://www.math.ku.dk/~d.cappelletti/ Daniele Cappelletti] (KU) <br />
| [[Applied/ACMS/absS16#Daniele Cappelletti (KU) | TBA ]]<br />
| Craciun<br />
|-<br />
| Feb 12 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Feb 19 <br />
| [http://directory.engr.wisc.edu/me/Faculty/Roldan-alzate_Alejandro/ Alejandro Roldán-Alzate] (UW) <br />
| [[Applied/ACMS/absS16#Alejandro Roldán-Alzate (UW) | TBA ]]<br />
| Spagnolie<br />
|-<br />
| Feb 26 <br />
| [http://math.sjtu.edu.cn/Showteacher.aspx?id=19&info_lb=98 Yachun Li] (SJTU)<br />
| [[Applied/ACMS/absS16#Yachun Li (SJTU) | TBA]] <br />
| Shi Jin<br />
|-<br />
| ''' Mar 4, 4pm, B239'''<br />
|[http://www.columbia.edu/~gb2030/ Guillaume Bal] (Columbia University)<br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''March 11, 4pm, B239''' <br />
| [http://math.umn.edu/~luskin Mitchell Luskin] (University of Minnesota)<br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| Li<br />
|-<br />
| Mar 18 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Mar 25 <br />
| Spring break <br />
| <br />
| <br />
|-<br />
| Apr 1 <br />
| [http://calinia.people.cofc.edu/ Annalisa Calini] (College of Charleston) <br />
| [[Colloquia#April 1: Annalisa Calini (College of Charleston) | TBA]] <br />
| Gloria Mari-Beffa<br />
|-<br />
| Apr 8 <br />
| [http://math.mit.edu/~dunkel/ Jörn Dunkel] (MIT)<br />
| [[Applied/ACMS/absS16#Jörn Dunkel (MIT) | TBA]] <br />
| Saverio<br />
|-<br />
| Apr 15 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Apr 22 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''Apr 29, 4pm, B239''' <br />
| [http://www.physics.upenn.edu/~kamien/kamiengroup/ Randall Kamien] (U Penn)<br />
| [[Applied/ACMS/absS16#Randall Kamien (U Penn) | TBA]] <br />
| Saverio<br />
|-<br />
| '''Mon. May 2'''<br />
| [http://www.ing.unitn.it/~toroe/ Eleuterio Toro] (U Trento) <br />
| [[Applied/ACMS/absS16#Eleuterio Toro (U Trento) | TBA]] <br />
| Jin<br />
|-<br />
| '''Wed. May 4'''<br />
| [http://perso-math.univ-mlv.fr/users/fermanian.clotilde/index_en.html Clotilde Fermanian Kammerer] (Insmi - CNRS) <br />
| [[Applied/ACMS/absS16#Clotilde Fermanian Kammerer (Insmi - CNRS) | TBA]] <br />
| Jin<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/Spring2016&diff=10642Applied/ACMS/Spring20162015-11-05T21:57:32Z<p>Marko: /* Spring 2016 */</p>
<hr />
<div>== Spring 2016 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| Jan 22<br />
| [https://sites.google.com/a/eng.ucsd.edu/sgls/ Stefan Llewellyn-Smith] (UCSD)<br />
| [[Applied/ACMS/absS16#Stefan Llewellyn-Smith (UCSD) | TBA]] <br />
| Saverio<br />
|-<br />
| Jan 29<br />
| [http://www.eg.bucknell.edu/physics/solomon.html Tom Solomon] (Bucknell)<br />
| [[Applied/ACMS/absS16#Tom Solomon (Bucknell) | TBA ]]<br />
| Jean-Luc and Marko<br />
|-<br />
| Feb 5 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Feb 12 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Feb 19 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Feb 26 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| ''' Mar 4, 4pm, B239'''<br />
|[http://www.columbia.edu/~gb2030/ Guillaume Bal] (Columbia University)<br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''March 11, 4pm, B239''' <br />
| [http://math.umn.edu/~luskin Mitchell Luskin] (University of Minnesota)<br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| Li<br />
|-<br />
| Mar 18 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Mar 25 <br />
| Spring break <br />
| <br />
| <br />
|-<br />
| Apr 1 <br />
| [http://calinia.people.cofc.edu/ Annalisa Calini] (College of Charleston) <br />
| [[Colloquia#April 1: Annalisa Calini (College of Charleston) | TBA]] <br />
| Gloria Mari-Beffa<br />
|-<br />
| Apr 8 <br />
| [http://math.mit.edu/~dunkel/ Jörn Dunkel] (MIT)<br />
| [[Applied/ACMS/absS16#Jörn Dunkel (MIT) | TBA]] <br />
| Saverio<br />
|-<br />
| Apr 15 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| Apr 22 <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''Apr 29, 4pm, B239''' <br />
| [http://www.physics.upenn.edu/~kamien/kamiengroup/ Randall Kamien] (U Penn)<br />
| [[Applied/ACMS/absS16#Randall Kamien (U Penn) | TBA]] <br />
| Saverio<br />
|-<br />
| '''Wed. May 4'''<br />
| [http://perso-math.univ-mlv.fr/users/fermanian.clotilde/index_en.html Clotilde Fermanian Kammerer] (Insmi - CNRS) <br />
| [[Applied/ACMS/absS16#Clotilde Fermanian Kammerer (Insmi - CNRS) | TBA]] <br />
| Jin<br />
|}</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=10419Applied/Physical Applied Math2015-10-08T15:40:14Z<p>Marko: /* Fall 2015 Semester */</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 />
== Fall 2015 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep 3<br />
|Jean-Luc Thiffeault<br />
|Optimizing heat exchangers<br />
|-<br />
|Sep 10<br />
|Colin Wahl<br />
|Computing the Evans function via solving a linear boundary-value ODE<br />
|-<br />
|Sep 17<br />
|Faculty Meeting<br />
|<br />
|-<br />
|Sep 24<br />
|Will Mitchell<br />
|Radiative heat transfer between surfaces<br />
|-<br />
|Oct 1<br />
|no meeting<br />
|<br />
|-<br />
|Oct 8<br />
|Marko Budisic<br />
|(Meta)heuristic optimization: Simulated annealing, Genetic algorithms, and other black magic [http://dx.doi.org/10.1145/937503.937505 [a good survey]]<br />
|-<br />
|Oct 15<br />
|Peter Mueller<br />
|TBA<br />
|-<br />
|Oct 22<br />
|Faculty Meeting<br />
|<br />
|-<br />
|Oct 29<br />
|TBA<br />
|TBA<br />
|-<br />
|Nov 5<br />
|TBA<br />
|TBA<br />
|-<br />
|Nov 12<br />
|TBA<br />
|TBA<br />
|-<br />
|Nov 19<br />
|Faculty Meeting<br />
|<br />
|-<br />
|Nov 26<br />
|Thanksgiving break<br />
|<br />
|-<br />
|Dec 3<br />
|TBA<br />
|TBA<br />
|-<br />
|Dec 10<br />
|Faculty Meeting<br />
|<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=10392Applied/Physical Applied Math2015-10-06T19:19:57Z<p>Marko: /* Fall 2015 Semester */</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 />
== Fall 2015 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep 3<br />
|Jean-Luc Thiffeault<br />
|Optimizing heat exchangers<br />
|-<br />
|Sep 10<br />
|Colin Wahl<br />
|Computing the Evans function via solving a linear boundary-value ODE<br />
|-<br />
|Sep 17<br />
|Faculty Meeting<br />
|<br />
|-<br />
|Sep 24<br />
|Will Mitchell<br />
|Radiative heat transfer between surfaces<br />
|-<br />
|Oct 1<br />
|no meeting<br />
|<br />
|-<br />
|Oct 8<br />
|Marko Budisic<br />
|(Meta)heuristic optimization: Simulated annealing, Genetic algorithms, and other black magic topics<br />
|-<br />
|Oct 15<br />
|Peter Mueller<br />
|TBA<br />
|-<br />
|Oct 22<br />
|Faculty Meeting<br />
|<br />
|-<br />
|Oct 29<br />
|TBA<br />
|TBA<br />
|-<br />
|Nov 5<br />
|TBA<br />
|TBA<br />
|-<br />
|Nov 12<br />
|TBA<br />
|TBA<br />
|-<br />
|Nov 19<br />
|Faculty Meeting<br />
|<br />
|-<br />
|Nov 26<br />
|Thanksgiving break<br />
|<br />
|-<br />
|Dec 3<br />
|TBA<br />
|TBA<br />
|-<br />
|Dec 10<br />
|Faculty Meeting<br />
|<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=10135Applied/ACMS2015-09-08T20:59:52Z<p>Marko: /* Fall 2015 Semester */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' <strike>901</strike> B231 Van Vleck Hall (until October)<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 />
== Fall 2015 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sep 11<br />
|[http://www.math.ucla.edu/~liwang/ Li Wang] (UCLA)<br />
|''[[Applied/ACMS/absF15#Li Wang (UCLA)|Singular shocks: From particle-laden flow to human crowd dynamics]]''<br />
|Shi Jin <br />
|-<br />
|-<br />
|Sep 18<br />
|[http://louisfan.web.unc.edu/ Wai Tong (Louis) Fan] (UW)<br />
|''[[Applied/ACMS/absF15#Wai Tong (Louis) Fan (UW)|TBA]]''<br />
|Saverio<br />
|-<br />
|'''Wed. Sep 23'''<br />
|[http://math.uchicago.edu/~wjing/ Wenjia Jing] (U Chicago)<br />
|''[[Applied/ACMS/absF15#Wenjia Jing (U Chicago)|Limiting distributions of random fluctuations in stochastic homogenization]]''<br />
|Li, Jin <br />
|-<br />
|Sep 25<br />
|[https://artioevans.wordpress.com/ Arthur Evans] (UW)<br />
|''[[Applied/ACMS/absF15#Arthur Evans (UW)|Ancient art and modern mechanics: using origami design to create new materials]]''<br />
|Saverio <br />
|-<br />
|Oct 2<br />
|TBA<br />
|TBA<br />
|(UW)<br />
|-<br />
|'''Wed. Oct 7'''<br />
| [https://perso.univ-rennes1.fr/mohammed.lemou/ Mohammed Lemou] (Universite Rennes I) <br />
| [[Applied/ACMS/absF15#Mohammed Lemou (Universite Rennes I) | TBA]]<br />
| Jin<br />
|-<br />
|Oct 9<br />
|TBA<br />
|TBA<br />
|-<br />
|Oct 16<br />
| [http://users.cms.caltech.edu/~qinli/ Qin Li] (UW) <br />
| [[Applied/ACMS/absF15#Qin Li (UW) | TBA]]<br />
| Saverio<br />
|-<br />
|Oct 23<br />
| [http://math.ucsd.edu/~mleok/ Melvin Leok] (UC San Diego) <br />
| [[Applied/ACMS/absF15#Melvin Leok (UC San Diego) | TBA]]<br />
|Li, Jin<br />
|<br />
|-<br />
|Oct 30<br />
|TBA<br />
|TBA<br />
|(UW)<br />
|-<br />
|Nov 6<br />
| [http://people.seas.harvard.edu/~chr/ Chris Rycroft] (Harvard) <br />
| [[Applied/ACMS/absF15#Chris Rycroft (Harvard) | TBA]]<br />
|Saverio<br />
|-<br />
|Nov 13<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Nov 20<br />
|TBA<br />
|TBA<br />
|(UW)<br />
|-<br />
|Nov 27<br />
|Thanksgiving break<br />
|<br />
|<br />
|-<br />
|Dec 4<br />
| [https://cfwebprod.sandia.gov/cfdocs/CompResearch/templates/insert/profile.cfm?snl_id=4956 John Shadid] (Sandia) <br />
| [[Applied/ACMS/absF15#John Shadid (Sandia) | TBA]]<br />
|Sondak<br />
|-<br />
|Dec 11<br />
|TBA<br />
|TBA<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=10134Applied/ACMS2015-09-08T20:59:20Z<p>Marko: /* Fall 2015 Semester */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Applied and Computational Mathematics Seminar =<br />
<br />
*'''When:''' Fridays at 2:25pm (except as otherwise indicated)<br />
*'''Where:''' <strike>901</strike> B231 Van Vleck Hall (until October)<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 />
== Fall 2015 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sep 11<br />
|[http://www.math.ucla.edu/~liwang/ Li Wang] (UCLA)<br />
|''[[Applied/ACMS/absF15#Li Wang (UCLA)|Singular shocks: From particle-laden flow to human crowd dynamics]]''<br />
|Shi Jin <br />
|-<br />
|-<br />
|Sep 18<br />
|[http://louisfan.web.unc.edu/ Wai Tong (Louis) Fan] (UW)<br />
|''[[Applied/ACMS/absF15#Wai Tong (Louis) Fan (UW)|TBA]]''<br />
|Saverio<br />
|-<br />
|'''Wed. Sep 23'''<br />
|[http://math.uchicago.edu/~wjing/ Wenjia Jing] (U Chicago)<br />
|''[[Applied/ACMS/absF15#Wenjia Jing (U Chicago)|Limiting distributions of random fluctuations in stochastic homogenization]]''<br />
|Li, Jin <br />
|-<br />
|Sep 25<br />
|[https://artioevans.wordpress.com/ Arthur Evans] (UW)<br />
|''[[Applied/ACMS/absF15#Arthur Evans (UW)|Ancient art and modern mechanics: using origami design to create new materials]]''<br />
|Saverio <br />
|-<br />
|Oct 2<br />
|TBA<br />
|TBA<br />
|(UW)<br />
|-<br />
|'''Wed. Oct 7'''<br />
| [https://perso.univ-rennes1.fr/mohammed.lemou/ Mohammed Lemou] (Universite Rennes I) <br />
| [[Applied/ACMS/absF15#Mohammed Lemou (Universite Rennes I) | TBA]]<br />
| Jin<br />
|-<br />
|Oct 9<br />
|TBA<br />
|TBA<br />
|(UW)<br />
|-<br />
|Oct 16<br />
| [http://users.cms.caltech.edu/~qinli/ Qin Li] (UW) <br />
| [[Applied/ACMS/absF15#Qin Li (UW) | TBA]]<br />
| Saverio<br />
|-<br />
|Oct 23<br />
| [http://math.ucsd.edu/~mleok/ Melvin Leok] (UC San Diego) <br />
| [[Applied/ACMS/absF15#Melvin Leok (UC San Diego) | TBA]]<br />
|Li, Jin<br />
|<br />
|-<br />
|Oct 30<br />
|TBA<br />
|TBA<br />
|(UW)<br />
|-<br />
|Nov 6<br />
| [http://people.seas.harvard.edu/~chr/ Chris Rycroft] (Harvard) <br />
| [[Applied/ACMS/absF15#Chris Rycroft (Harvard) | TBA]]<br />
|Saverio<br />
|-<br />
|Nov 13<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Nov 20<br />
|TBA<br />
|TBA<br />
|(UW)<br />
|-<br />
|Nov 27<br />
|Thanksgiving break<br />
|<br />
|<br />
|-<br />
|Dec 4<br />
| [https://cfwebprod.sandia.gov/cfdocs/CompResearch/templates/insert/profile.cfm?snl_id=4956 John Shadid] (Sandia) <br />
| [[Applied/ACMS/absF15#John Shadid (Sandia) | TBA]]<br />
|Sondak<br />
|-<br />
|Dec 11<br />
|TBA<br />
|TBA<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=10125Colloquia/Fall182015-09-08T14:17:45Z<p>Marko: /* October 9: Igor Mezic (UC Santa Barbara) */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|- <br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| [[Colloquia#September 4: Isaac Goldbring (UIC) | On Kirchberg's embedding problem]] <br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| [[Colloquia#September 11: Doron Puder (IAS) | Word-Measures on Groups]]<br />
| Gurevich<br />
|-<br />
| '''September 18''' <br />
| [http://homepages.math.uic.edu/~coskun/ Izzet Coskun] (UIC)<br />
| [[Colloquia#September 18: Izzet Coskun (UIC) | The geometry of points in the plane]] <br />
| Erman<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | Structure and Dynamics from Random Observations]] <br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <br />
| <br />
| <br />
|-<br />
| '''October 9''' <br />
| <br />
| <!-- [[Colloquia#October 9: | TBA]] --><br />
| <br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Lu Wang (UW) <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved *S <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved *T <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
Title: On Kirchberg's embedding problem<br />
<br />
Abstract: In his seminal work on the classification program for nuclear C*-algebras, Kirchberg showed that a particular C*-algebra, the Cuntz algebra O2, plays a seminal role. Subsequent work with Chris Phillips showed that O2 also plays a prominent role in regards to the wider class of exact C*-algebras, and this led Kirchberg to conjecture that every C*-algebra is finitely representable in O2, that is, is embeddable in an ultrapower of O2. The main goal of this talk is to sketch a proof of a local finitary reformulation of this conjecture of Kirchberg. The proof uses model theory and in particular the notion of model-theoretic forcing. No knowledge of C*-algebras or model theory will be assumed. This is joint work with Thomas Sinclair.<br />
<br />
==== ====<br />
<br />
===September 11: Doron Puder (IAS) ===<br />
Title: Word-Measures on Groups.<br />
<br />
Abstract: Let w be a word in the free group on k generators, and let G be a finite (compact) group. The word w induces a measure on G by substituting the letters of w with k independent uniformly (Haar) chosen random elements of G and evaluating the product. Questions about word-measures on groups attracted attention in recent years both for their own sake and as a tool to analyze random walks on groups.<br />
<br />
We will explain some properties of word-measure, give examples and state conjectures. We will also talk about recent results regarding word-measures on symmetric groups and word-measures on unitary groups.<br />
==== ====<br />
<br />
===September 18: Izzet Coskun (UIC) ===<br />
Title: The geometry of points in the plane<br />
<br />
Abstract: Grothendieck's Hilbert scheme of points is a smooth compactification of the configuration space of points in the plane. It has close connections with combinatorics, representation theory, mathematical physics and algebraic geometry. In this talk, I will survey some of the basic properties of this beautiful space. If time permits, I will discuss joint work with Arcara, Bertram and Huizenga on codimension one subvarieties of the Hilbert scheme.<br />
==== ====<br />
<br />
===September 25: Ourmazd (UW-Milwaukee) ===<br />
Title: Structure and Dynamics from Random Observations<br />
<br />
Abstract: At weddings, the bridal photo is taken under bright lights, with the happy couple holding still. Traditionally in science, the “best” observations are those with the largest signal from the most tightly controlled system. Like bridal photos, the results are not always exciting. In a wide range of phenomena – from the dance of proteins during their function, to the breaking of molecular bonds on the femtosecond scale – tight control is neither possible, nor desirable. Modern data-analytical techniques extract far more information from random sightings than usually obtained from set-piece experiments.<br />
I will describe on-going efforts to extract structural and dynamical information from noisy, random snapshots. Examples will include YouTube videos, the structure and conformations of molecular machines such as the ribosome, and the ultrafast dynamics of bond-breaking in small molecules like nitrogen.<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=9866Applied/ACMS2015-07-31T16:27:26Z<p>Marko: /* Fall 2016 Semester */</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://lists.math.wisc.edu/listinfo/acms mailing list] website.<br />
<br />
<br><br />
<br />
== Fall 2016 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sep 11<br />
|[http://www.math.ucla.edu/~liwang/ Li Wang] (UCLA)<br />
|''[[Applied/ACMS/absF15#Li Wang (UCLA)|Singular shocks: From particle-laden flow to human crowd dynamics]]''<br />
|Shi Jin <br />
|-<br />
|-<br />
|Sep 18<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Sep 25<br />
|[https://artioevans.wordpress.com/ Arthur Evans] (UW)<br />
|''[[Applied/ACMS/absF15#Arthur Evans (UW)|TBA]]''<br />
|Saverio <br />
|-<br />
|Oct 2<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|'''Oct 9, 4pm, B239 (colloquium)'''<br />
| [https://www.engr.ucsb.edu/~mgroup Igor Mezic] (UC Santa Barbara) <br />
| [[Applied/ACMS/absF15#Igor Mezic (UC Santa Barbara) | TBA]]<br />
| Budisic, Thiffeault<br />
|-<br />
|Oct 16<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Oct 23<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Oct 30<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Nov 6<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Nov 13<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Nov 20<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Nov 27<br />
|Thanksgiving break<br />
|<br />
|<br />
|-<br />
|Dec 4<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Dec 11<br />
|TBA<br />
|TBA<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Spring2016|Spring 2016]]<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9835Colloquia/Fall182015-07-20T15:08:12Z<p>Marko: /* October 9: Igor Mezic (UC-Santa Barbara) */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| <!-- [[Colloquia#September 4: Isaac Goldbring (UIC) | title]] --><br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''September 18''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| <!-- [[Colloquia#September 18: Doron Puder (IAS) | title]] --><br />
| Gurevich<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| <!-- [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | TBA]] --><br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 9''' <br />
| [https://www.engr.ucsb.edu/~mgroup Igor Mezic] (UC Santa Barbara) <br />
| <!-- [[Colloquia#October 9: Igor Mezic (UC Santa Barbara) | TBA]] --><br />
| Budisic, Thiffeault<br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Wisconsin Science Festival. <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
<br />
==== ====<br />
<br />
===October 9: Igor Mezic (UC Santa Barbara) ===<br />
<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9834Colloquia/Fall182015-07-20T15:08:06Z<p>Marko: /* Fall 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| <!-- [[Colloquia#September 4: Isaac Goldbring (UIC) | title]] --><br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''September 18''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| <!-- [[Colloquia#September 18: Doron Puder (IAS) | title]] --><br />
| Gurevich<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| <!-- [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | TBA]] --><br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 9''' <br />
| [https://www.engr.ucsb.edu/~mgroup Igor Mezic] (UC Santa Barbara) <br />
| <!-- [[Colloquia#October 9: Igor Mezic (UC Santa Barbara) | TBA]] --><br />
| Budisic, Thiffeault<br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Wisconsin Science Festival. <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
<br />
==== ====<br />
<br />
===October 9: Igor Mezic (UC-Santa Barbara) ===<br />
<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9833Colloquia/Fall182015-07-20T15:07:36Z<p>Marko: /* Fall 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| <!-- [[Colloquia#September 4: Isaac Goldbring (UIC) | title]] --><br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''September 18''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| <!-- [[Colloquia#September 18: Doron Puder (IAS) | title]] --><br />
| Gurevich<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| <!-- [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | TBA]] --><br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 9''' <br />
| [https://www.engr.ucsb.edu/~mgroup Igor Mezic] (UC-Santa Barbara) <br />
| <!-- [[Colloquia#October 9: Igor Mezic (UC-Santa Barbara) | TBA]] --><br />
| Budisic, Thiffeault<br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Wisconsin Science Festival. <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
<br />
==== ====<br />
<br />
===October 9: Igor Mezic (UC-Santa Barbara) ===<br />
<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9832Colloquia/Fall182015-07-20T15:07:17Z<p>Marko: /* Abstracts */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| <!-- [[Colloquia#September 4: Isaac Goldbring (UIC) | title]] --><br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''September 18''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| <!-- [[Colloquia#September 18: Doron Puder (IAS) | title]] --><br />
| Gurevich<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| <!-- [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | TBA]] --><br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 9''' <br />
| [https://www.engr.ucsb.edu/~mgroup Igor Mezic] (UC-Santa Barbara) <br />
| <!-- [[Colloquia#October 9: Igor Mezic (UC-Santa Barbara) | TBA]] --><br />
| Budisic, Thiffeault<br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Wisconsin Science Festival. <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
<br />
==== ====<br />
<br />
===October 9: Igor Mezic (UC-Santa Barbara) ===<br />
<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9831Colloquia/Fall182015-07-20T14:36:32Z<p>Marko: /* Fall 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| <!-- [[Colloquia#September 4: Isaac Goldbring (UIC) | title]] --><br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''September 18''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| <!-- [[Colloquia#September 18: Doron Puder (IAS) | title]] --><br />
| Gurevich<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| <!-- [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | TBA]] --><br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 9''' <br />
| [https://www.engr.ucsb.edu/~mgroup Igor Mezic] (UC-Santa Barbara) <br />
| <!-- [[Colloquia#October 9: Igor Mezic (UC-Santa Barbara) | TBA]] --><br />
| Budisic, Thiffeault<br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Wisconsin Science Festival. <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9830Colloquia/Fall182015-07-20T14:35:47Z<p>Marko: /* Fall 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| <!-- [[Colloquia#September 4: Isaac Goldbring (UIC) | title]] --><br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''September 18''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| <!-- [[Colloquia#September 18: Doron Puder (IAS) | title]] --><br />
| Gurevich<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| <!-- [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | TBA]] --><br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 9''' <br />
| <!-- [https://www.engr.ucsb.edu/~mgroup Igor Mezic] (UC-Santa Barbara) --> <br />
| <!-- [[Colloquia#October 9: Igor Mezic (UC-Santa Barbara) | TBA]] --><br />
| Budisic, Thiffeault<br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Wisconsin Science Festival. <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9829Colloquia/Fall182015-07-20T14:34:55Z<p>Marko: /* Fall 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Fall 2015 ==<br />
<br />
Go to next semester, [[Colloquia/Spring 2016|Spring 2016]].<br />
<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| '''September 4''' <br />
| [http://homepages.math.uic.edu/~isaac/ Isaac Goldbring] (UIC) <br />
| <!-- [[Colloquia#September 4: Isaac Goldbring (UIC) | title]] --><br />
| Andrews/Lempp<br />
|-<br />
| '''September 11''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''September 18''' <br />
| [https://sites.google.com/site/doronpuder/ Doron Puder] (IAS) <br />
| <!-- [[Colloquia#September 18: Doron Puder (IAS) | title]] --><br />
| Gurevich<br />
|-<br />
| '''September 25''' <br />
| [https://pantherfile.uwm.edu/ourmazd/www/ Abbas Ourmazd] (UW-Milwaukee) <br />
| <!-- [[Colloquia#September 25: Abbas Ourmazd (UW-Milwaukee) | TBA]] --><br />
| Mitchell<br />
|-<br />
| '''October 2''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#September 11: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 9''' <br />
| <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October 9: Igor Mezic (UC-Santa Barbara) | TBA]] --><br />
| Budisic, Thiffeault<br />
|-<br />
| '''October 16''' <br />
| [http://mysite.science.uottawa.ca/hsalmasi/ Hadi Salmasian] (Ottawa) <br />
| <!-- [[Colloquia#October 23: Speaker (University) | title]] --><br />
| Gurevich<br />
|-<br />
| '''October 23''' <br />
| Wisconsin Science Festival. <!-- [webpage Speaker Name] (University) --> <br />
| <!-- [[Colloquia#October16: Speaker (University) | title]] --><br />
| <!-- host --><br />
|-<br />
| '''October 30''' <br />
| [http://people.brandeis.edu/~charney/Charney15.html Ruth Charney] (Brandeis) <br />
| <!-- [[Colloquia#October 30: Ruth Charney (Brandeis) | title]] --><br />
| Dymarz<br />
|-<br />
| '''November 6''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 13''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 20''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''November 27''' <br />
| University Holiday<br />
| No Colloquium<br />
|<br />
|-<br />
| '''December 4''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|-<br />
| '''December 11''' <br />
| Reserved <!-- Remove if no job talks --><br />
|<br />
|<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===September 4: Isaac Goldbring (UIC) ===<br />
<br />
==== ====<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Spring2014|Spring 2015]]<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=9646Applied/ACMS2015-04-13T08:28:07Z<p>Marko: /* Spring 2015 Semester */</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://lists.math.wisc.edu/listinfo/acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2015 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Jan 23<br />
|[http://www.maths.dundee.ac.uk/ikyza/IreneKyza/ Irene Kyza] (U Dundee)<br />
|''[[Applied/ACMS/absS15#Irene Kyza (U Dundee)|Adaptivity and blowup detection for semilinear evolution convection-diffusion equations based on a posteriori error control]]''<br />
|Shi Jin <br />
|-<br />
|Jan 30<br />
|[http://www.aos.wisc.edu/~dvimont/ Daniel Vimont] (UW)<br />
|''[[Applied/ACMS/absS15#Daniel Vimont (UW)|Linear Inverse Modeling of Central and East Pacific El Niño / Southern Oscillation (ENSO) Events]]''<br />
|Sam, Saverio<br />
|<br />
|-<br />
|Feb 13<br />
|[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie] (UW)<br />
|''[[Applied/ACMS/absS15#Saverio Spagnolie (UW)|Sedimentation in viscous fluids: flexible filaments and boundary effects]]''<br />
|<br />
|-<br />
|Feb 20<br />
|[http://jbfreund.mechse.illinois.edu/ Jonathan Freund] (U Illinois)<br />
|''[[Applied/ACMS/absS15#Jonathan Freund (UIUC)|Adjoint-based optimization for understanding and reducing flow noise]]''<br />
|Saverio<br />
|-<br />
|Feb 27<br />
|[http://people.math.umass.edu/~markos/ Markos Katsoulakis] (U Mass Amherst)<br />
|''[[Applied/ACMS/absS15#Markos Katsoulakis (U Mass Amherst)|Information Theory methods for parameter sensitivity and coarse-graining of high-dimensional stochastic dynamics]]''<br />
|Shi Jin<br />
|-<br />
|Mar 6<br />
|[https://www.ljll.math.upmc.fr/~coquel/node2.html Frederic Coquel] (Ecole Polytechnique Paris)<br />
|''[[Applied/ACMS/absS15#Frederic Coquel (Ecole Polytechnique Paris)|Jin and Xin's Relaxation Framework with Defect Measure Corrections]]''<br />
|Shi Jin<br />
|-<br />
|Mar 13<br />
|[http://dauns.math.tulane.edu/~ljf/ Lisa Fauci] (Tulane)<br />
|''[[Applied/ACMS/absS15#Lisa Fauci (Tulane)|Flagellar motility: negotiating sticky elastic bonds and viscoelastic networks]]''<br />
|Saverio<br />
|-<br />
|Mar 20<br />
|[http://www.seas.upenn.edu/directory/profile.php?ID=3 Paulo Arratia] (U Penn)<br />
|''[[Applied/ACMS/absS15#Paulo Arratia (U Penn)|Pulling & pushing in complex fluids]]''<br />
|Saverio<br />
|-<br />
|''Wed. Mar 25'', '''VV B321'''<br />
|[http://www.cc.ac.cn/staff/tzhou.html Tao Zhou] (Chinese Academy of Sciences)<br />
|''[[Applied/ACMS/absS15#Tao Zhou (Chinese Academy of Sciences)|The Christoffel function weighted least-squares for stochastic<br />
collocation approximations: applications to Uncertainty Quantification]]''<br />
|Shi Jin<br />
|-<br />
|Apr 3<br />
|<br />
|Spring break<br />
|<br />
|-<br />
|''Wed. Apr 8'', '''VV B321'''<br />
|[http://personal.maths.surrey.ac.uk/st/bc0012/ Bin Cheng] (University of Surrey)<br />
|''[[Applied/ACMS/absS15#Bin Cheng (University of Surrey)|Error estimates and 2nd order corrections to reduced fluid models]]''<br />
|Shi Jin<br />
|<br />
|-<br />
|Apr 10<br />
|[http://banajim.myweb.port.ac.uk/ Murad Banaji] (University of Portsmouth)<br />
|''[[Applied/ACMS/absS15#Murad Banaji (University of Portsmouth)| Nonexpansivity in chemical reaction networks]]''<br />
|Craciun<br />
|<br />
|-<br />
|''Mon. Apr 13'', '''VV B321'''<br />
|[http://www.tcs.tifr.res.in/~manoj// Manoj Gopalkrishnan] (Tata Institute Mumbai)<br />
|''[[Applied/ACMS/absS15#Manoj Gopalkrishnan (Tata Institute Mumbai)| Autocatalysis in reaction networks]]''<br />
|Anderson and Craciun<br />
|<br />
|-<br />
|Apr 17<br />
|[http://pages.cs.wisc.edu/~swright/ Stephen Wright] (UW)<br />
|''[[Applied/ACMS/absS15#Stephen Wright (UW)|The revival of coordinate descent methods]]''<br />
|Saverio<br />
|-<br />
|Apr 24<br />
|[https://vivo.brown.edu/display/tpowers Thomas Powers] (Brown)<br />
|''[[Applied/ACMS/absS15#Thomas Powers (Brown)|TBA]]''<br />
|Saverio<br />
|-<br />
|May 1<br />
|[http://www.marquette.edu/mscs/facstaff-spiller.shtml Elaine Spiller] (Marquette)<br />
|''[[Applied/ACMS/absS15#Elaine Spiller (Marquette)|Uncertainty quantification and geophysical hazard mapping]]''<br />
|Budisic<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS15&diff=9645Applied/ACMS/absS152015-04-13T08:27:20Z<p>Marko: /* Elaine Spiller (Marquette) */</p>
<hr />
<div>= ACMS Abstracts: Spring 2015 =<br />
<br />
=== Irene Kyza (U Dundee) ===<br />
<br />
''Adaptivity and blowup detection for semilinear evolution convection-diffusion equations based on a posteriori error control''<br />
<br />
We discuss recent results on the a posteriori error control and adaptivity for an evolution semilinear convection-diffusion model problem with possible blowup in finite time. This belongs to the broad class of partial differential equations describing e.g., tumor growth,chemotaxis and cell modelling. In particular, we derive a posteriori error estimates that are conditional (estimates which are valid under conditions of a posteriori type) for an interior penalty discontinuous Galerkin (dG) implicit-explicit (IMEX) method using a continuation argument. Compared to a previous work, the obtained conditions are more localised and allow the efficient error control near the blowup time. Utilising the conditional a posteriori estimator we are able to propose an adaptive algorithm that appears to perform satisfactorily. In particular, it leads to good approximation of the blowup time and of the exact solution close to the blowup. Numerical experiments illustrate and complement our theoretical results. This is joint work with A. Cangiani, E.H. Georgoulis, and S. Metcalfe from the University of Leicester.<br />
<br />
=== Daniel Vimont (UW) ===<br />
<br />
''Linear Inverse Modeling of Central and East Pacific El Niño / Southern Oscillation (ENSO) Events''<br />
<br />
Research on the structure and evolution of individual El Niño / Southern Oscillation (ENSO) events has identified two categories of ENSO event characteristics that can be defined by maximum equatorial SST anomalies centered in the Central Pacific (around the dateline to 150 deg. W; CP events) or in the Eastern Pacific (east of about 150 deg. W; EP events). The distinction between these two events is not just academic: both types of event evolve differently, implying different predictability; the events tend to have different maximum amplitude; and the global teleconnection differs between each type of event. <br />
<br />
In this presentation I will (i) describe the Linear Inverse Modeling (LIM) technique, (ii) apply LIM to determine an empirical dynamical operator that governs the evolution of tropical Pacific climate variability, (iii) define norms under which initial conditions can be derived that optimally lead to growth of CP or EP ENSO events, and (iv) identify patterns of stochastic forcing that are responsible for exciting each type of event.<br />
<br />
=== Saverio Spagnolie (UW) ===<br />
<br />
''Sedimentation in viscous fluids: flexible filaments and boundary effects''<br />
<br />
The deformation and transport of elastic filaments in viscous fluids play central roles in many biological and technological processes. Compared with the well-studied case of sedimenting rigid rods, the introduction of filament compliance may cause a significant alteration in the long-time sedimentation orientation and filament geometry. In the weakly flexible regime, a multiple-scale asymptotic expansion is used to obtain expressions for filament translations, rotations and shapes which match excellently with full numerical simulations. In the highly flexible regime we show that a filament sedimenting along its long axis is susceptible to a buckling instability. Embedding the analytical results for a single filament into a mean-field theory, we show how flexibility affects a well established concentration instability in a sedimenting suspension. <br />
<br />
Another problem of classical interest in fluid mechanics involves the sedimentation of a rigid particle near a wall, but most studies have been numerical or experimental in nature. We have derived ordinary differential equations describing the sedimentation of arbitrarily oriented prolate and oblate spheroids near a vertical or inclined plane wall which may be solved analytically for many important special cases. Full trajectories are predicted which compare favorably with complete numerical simulations performed using a novel double layer boundary integral formulation, a Method of Stresslet Images. Several trajectory-types emerge, termed tumbling, glancing, reversing, and sliding, along with their fully three-dimensional analogues.<br />
<br />
=== Jonathan Freund (UIUC) ===<br />
<br />
''Adjoint-based optimization for understanding and reducing flow noise''<br />
<br />
Advanced simulation tools, particularly large-eddy simulation techniques, are becoming capable of making quality predictions of jet noise for realistic nozzle geometries and at engineering relevant flow conditions. Increasing computer resources will be a key factor in improving these predictions still further. Quality prediction, however, is only a necessary condition for the use of such simulations in design optimization. Predictions do not of themselves lead to quieter designs. They must be interpreted or harnessed in some way that leads to design improvements. As yet, such simulations have not yielded any simplifying principals that offer general design guidance. The turbulence mechanisms leading to jet noise remain poorly described in their complexity. In this light, we have implemented and demonstrated an aeroacoustic adjoint-based optimization technique that automatically calculates gradients that point the direction in which to adjust controls in order to improve designs. This is done with only a single flow solutions and a solution of an adjoint system, which is solved at computational cost comparable to that for the flow. Optimization requires iterations, but having the gradient information provided via the adjoint accelerates convergence in a manner that is insensitive to the number of parameters to be optimized. The talk will review the formulation of the adjoint of the compressible flow equations for optimizing noise-reducing controls and present examples of its use. We will particularly focus on some mechanisms of flow noise that have been revealed via this approach.<br />
<br />
=== Markos Katsoulakis (U Mass Amherst) ===<br />
<br />
''Information Theory methods for parameter sensitivity and coarse-graining of high-dimensional stochastic dynamics''<br />
<br />
In this talk we discuss path-space information theory-based sensitivity analysis and parameter identification methods for complex high-dimensional dynamics, as well as information-theoretic tools for parameterized coarse-graining of non-equilibrium extended systems. Furthermore, we establish their connections with goal-oriented methods in terms of new, sharp, uncertainty quantification inequalities. The combination of proposed methodologies is capable to (a) handle molecular-level models with a very large number of parameters, (b) address and mitigate the high-variance in statistical estimators, e.g. for sensitivity analysis, in spatially distributed <br />
<br />
Kinetic Monte Carlo (KMC), (c) tackle non-equilibrium processes, typically associated with coupled physicochemical mechanisms, boundary conditions, etc. (such as reaction-diffusion systems), and where even steady states are unknown altogether, e.g. do not have a Gibbs structure. Finally, the path-wise information theory tools, (d) yield a surprisingly simple, tractable and easy-to-implement approach to quantify and rank parameter sensitivities, as well as (e) provide reliable molecular model parameterizations for coarse-grained molecular systems and their dynamics, based on fine-scale data and rational model selection methods through suitable path-space (dynamics-based) information criteria. The proposed methods are tested against a wide range of high-dimensional stochastic processes, ranging from complex biochemical reaction networks with hundreds of parameters, to spatially extended Kinetic Monte Carlo models in catalysis and Langevin dynamics of interacting molecules with internal degrees of freedom.<br />
<br />
=== Frederic Coquel (Ecole Polytechnique Paris) ===<br />
<br />
''Jin and Xin's Relaxation Solvers with Defect Measure Corrections''<br />
<br />
We present a class of finite volume methods for approximating entropy weak solutions of non-linear hyperbolic PDEs. The main motivation is to resolve discontinuities as well as Glimm's scheme, but without the need for solving Riemann problems exactly. The sharp capture of discontinuities is known to be mandatory in situations where discontinuities are sensitive to viscous perturbations while exact Riemann solutions may not be available (typically in phase transition problems). More generally, sharp capture also prevent discrete shock proles from exhibiting over and undershoots, which is decisive in a many applications (in combustion for instance). We propose to replace exact Riemann solutions by self-similar solutions conveniently derived from the Jin-Xin's relaxation framework. In the limit of a vanishing relaxation time, the relaxation source term exhibits Dirac measures concentrated on the discontinuities. We show how to handle those so-called defect measures in order to exactly capture propagating shock solutions while achieving computational efficiencies. The lecture will essential focus on the convergence analysis in the scalar setting. A special attention is paid to the consistency of the proposed correction with respect to the entropy condition. We prove the convergence of the method to the unique Kruvkov's solution.<br />
<br />
=== Lisa Fauci (Tulane) ===<br />
<br />
''Flagellar motility: negotiating sticky elastic bonds and viscoelastic networks''<br />
<br />
We will discuss a Stokes fluid model that incorporates forces due to elastic structures in the fluid environment of the actuated flagellum. We will present recent computational investigations of hyperactivated sperm detachment from oviductal epithelium as well as swimming through viscoelastic networks. <br />
<br />
=== Paulo Arratia (U Penn) ===<br />
<br />
''Pulling and pushing in complex fluids''<br />
<br />
Many microorganisms evolve in media that contain (bio)-polymers and/or solids; examples include cervical mucus, intestinal fluid, wet soil, and tissues. These so-called complex fluids often exhibit non-Newtonian rheological behavior such as shear-thinning viscosity and elasticity. In this talk, I will discuss recent experiments on the effects of fluid elasticity on the swimming behavior of microorganisms. Two main microorganisms are used, the green algae C. reinhardtii (a puller-type swimmer) and the bacterium E. coli (a pusher-type swimmer). For the case of pullers (C. reinhardtii), we find that fluid elasticity hinders the cell’s overall swimming speed but leads to an increase in the cell’s flagellum beating frequency. The beating kinematics and flagellum waveforms are also significantly modified by fluid elasticity. For the case of pushers (E. coli), the presence of even small amount of polymers in the medium suppresses the bacteria run-and-tumble mechanism. The bacteria spend more time in ballistic mode and swim faster as well. Single molecule experiments using fluorescently labeled DNA show that the flow fields generated by E. coli are able to stretch initially coiled polymer molecules and thus induce elastic stresses in fluid. These results demonstrate the intimate link between swimming kinematics and fluid rheology and that one can control the spreading and motility of microorganisms by tuning fluid properties.<br />
<br />
=== Tao Zhou (Chinese Academy of Sciences) ===<br />
<br />
''The Christoffel function weighted least-squares for stochastic collocation approximations: applications to Uncertainty Quantification''<br />
<br />
We shall consider the multivariate stochastic collocation methods on unstructured grids. The motivation for such a study is the applications in parametric Uncertainty Quantification (UQ). We will first give a general framework of stochastic collocation methods, which include approaches such as compressed sensing, least-squares, and interpolation. Particular attention will be then given to the least-squares approach, and we will review recent progresses in this topic.<br />
<br />
=== Bin Cheng (University of Surrey) ===<br />
<br />
'Error estimates and 2nd order corrections to reduced fluid models''<br />
<br />
In this PDE analysis work, I will discuss the application of time-averaging in getting rigorous error estimates of some reduced fluid models, including the incompressible approximation and quasi-geostrophic approximation. The spatial boundary can be present as a non-penetrable solid wall. I will show a somewhat surprising result on the epsilon^2 accuracy of incompressible approximation of Euler equations, thanks to several decoupling properties.<br />
<br />
=== Murad Banaji (University of Portsmouth) ===<br />
<br />
''Nonexpansivity in chemical reaction networks''<br />
<br />
This work is motivated by the observation that quite often systems of differential equations describing chemical reaction networks (CRNs) display simple global behaviour such as convergence of all orbits to a unique equilibrium under only weak and physically reasonable assumptions on the reaction rates (kinetics). We are led to wonder if the structure of a CRN may sometimes force some distance between solutions to decrease (or at least not increase) with time. If so, how can we find this nonincreasing quantity? We explore different ways in which CRNs can define nonexpansive semiflows (recall that a semiflow <math>(\phi_t)_{t \geq 0}</math> on some Banach space <math>(X, |\cdot|)</math> is nonexpansive if <math>|\phi_t(x)-\phi_t(y)| \leq |x-y|</math> for all <math>x,y \in X</math> and all <math>t \geq 0</math>). It turns out that in CRNs the natural evolution of chemical concentrations may be nonexpansive; or a nonexpansive semiflow may be obtained from the evolution of the so-called "extents" of reactions. In both cases we may be able to draw global conclusions about convergence of chemical concentrations. In each case the challenge is to find the correct norm to get nonexpansivity for arbitrary kinetics. To construct such norms and show nonexpansivity we appeal to the theory of monotone dynamical systems. Families of CRNs which can be analysed in this way are presented; however characterising fully the class of CRNs to which this theory applies remains an open - and undoubtedly difficult - task.<br />
<br />
This is joint work with Bas Lemmens (University of Kent) and Pete Donnell (University of Portsmouth).<br />
<br />
<br />
=== Manoj Gopalkrishnan (Tata Institute Mumbai) ===<br />
<br />
''Autocatalysis in Reaction Networks"<br />
<br />
Abstract: The notion of "critical siphon" has been studied in reaction network theory in the context of the persistence question. We explore the combinatorics of critical siphons. We introduce the notions of "drainable" and "self-replicable" (or autocatalytic) siphons. We show that: every minimal critical siphon is either drainable or self-replicable; reaction networks without drainable siphons are persistent; and non-autocatalytic weakly-reversible networks are persistent. This result generalizes previous results for catalytic and atomic reaction networks. The proof is combinatorial in nature<br />
<br />
Reference: http://arxiv.org/abs/1309.3957<br />
<br />
=== Stephen Wright (UW) ===<br />
<br />
''The revival of coordinate descent methods''<br />
<br />
The approach of minimizing a function by successively fixing most of its variables and minimizing with respect to the others dates back many years, and has been applied in an enormous range of applications. Until recently, however, the approach did not command much respect among optimization researchers; only a few prominent individuals took it seriously. Recent years have seen an explosion in applications, particularly in data analysis, which has driven a new wave of research into variants of coordinate descent and their convergence properties. Such aspects as randomization in the choice of variants to fix and relax, acceleration methods, extension to regularized objectives, and parallel implementation have commanded a good deal of attention during the past five years. In this lecture, I will survey these recent developments, then focus on recent work on asynchronous parallel implementations for multicore computers. An analysis of the properties of the latter algorithms shows that near-linear speedup can be expected, up to a number of processors that depends on the coupling between the variables.<br />
<br />
This talk covers joint work with Ji Liu and other colleagues.<br />
<br />
=== Elaine Spiller (Marquette) ===<br />
<br />
''Uncertainty quantification and geophysical hazard mapping''<br />
<br />
PDE models of granular flows are invaluable tools for developing probabilistic hazards maps for volcanic landslides, but they are far from perfect. First, any probabilistic hazard map is conditioned on assumptions about the aleatoric uncertainty -- how mother nature rolls the dice -- and is hence tied to the choice of probability distributions describing various scenarios (e.g. initial and/or boundary conditions). Thus new data, differing expert opinion, or emergent scenarios may suggest that the original assumptions were invalid and thus the hazard map made under those assumptions is not terribly useful. Epistemic uncertainty -- uncertainty due to a lack of model refinement -- arises through assumptions made in physical models, numerical approximation, and imperfect statistical models. In the context of geophysical hazard mapping, we propose a surrogate-based methodology which efficiently assesses the impact of various uncertainties enabling a quick yet methodical comparison of the effects of uncertainty and error on computer model output.</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Madison_Math_Circle&diff=9629Madison Math Circle2015-04-08T16:31:36Z<p>Marko: /* Meetings for Fall 2014 and Spring 2015 */</p>
<hr />
<div>=Weekly Meeting=<br />
We have a weekly meeting, <b>Monday at 6pm in 120 Ingraham Hall</b>, during the school year. <b>New students are welcome at any point! </b> There is no required registration, no fee, and the talks are independent of one another, so you can just show up any week. See below for directions. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in [http://goo.gl/maps/6k5IA Ingraham Hall] room 120, on the UW-Madison campus).<br />
<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] <br />
<br />
[[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html<br />
<br />
=All right, I want to come!=<br />
==Directions and parking==<br />
Meetings are held in 120 Ingraham Hall.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Ingraham_Map.jpg|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*Directly in front of Ingraham hall, 2 metered spots (25 minute max) in [http://goo.gl/maps/HhFUm Lot 11 off of Observatory Drive].<br />
*A 0.2 mile walk to Ingraham Hall via [http://goo.gl/maps/3IFaw these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Ingraham Hall via [http://goo.gl/maps/yFwNr these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.2 mile walk to Ingraham Hall via [http://goo.gl/maps/9NNNm these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.3 mile walk to Ingraham Hall via [http://goo.gl/maps/P156B these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
Sign up for our email list: https://lists.math.wisc.edu/listinfo/math-circle<br />
<br />
==Contact the organizers==<br />
If you have any questions, suggestions for topics, or so on, just email the '''organizers''' (Carolyn Abbott, Gheorghe Craciun, Daniel Erman, Lalit Jain, Ryan Julian, and Philip Matchett Wood): [mailto:math-circle-organizers@math.wisc.edu math-circle-organizers@math.wisc.edu]. We are always interested in feedback!<br />
<br />
==Report on Math Circle in 2013-14==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf Annual Report]<br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. Our costs have been covered so far by donations from the UW Math Department plus generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"! The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "University of Wisconsin Math Department" and add the note "Math Circle Donation" on the check.<br />
<br />
==Flyer==<br />
Please feel free to distribute our flyer! <br />
[https://www.math.wisc.edu/wiki/images/Flyer_MMSD.pdf Flyer]<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our flyer at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Fall 2014 and Spring 2015=<br />
<br />
<center><br />
<br />
All talks are at '''6pm in [http://goo.gl/maps/6k5IA Ingraham Hall] room 120''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="4" style="background: #ffdead;" align="center" | Fall 2014 <br />
|-<br />
! Date and RSVP links!! Speaker !! Topic !! Link for more info<br />
|-<br />
| September 8, 2014 || Philip Matchett Wood || [[#Philip Matchett Wood | Pictures and Puzzles]] ||<br />
|-<br />
| September 15, 2014 || Jen Beichman || [[#TBA | Playing with geometric sums]] ||<br />
|-<br />
| September 22, 2014 || DJ Bruce || [[#TBA | Is any knot the unknot?]] ||<br />
|-<br />
| September 29, 2014 || Uri Andrews || [[#TBA | The games of Criss Cross and Brussels Sprouts]] ||<br />
|-<br />
| October 6, 2014 || David Sondak || [[#David Sondak | Fluids, Math, and Oobleck!]] ||<br />
|-<br />
| October 13, 2014 || George Craciun || [[#George Craciun | Proofs without words (but with plenty of pictures)]] ||<br />
|-<br />
| October 20, 2014 || Scott Hottovy || [[#TBA | Coming soon!]] ||<br />
|-<br />
| October 27, 2014 || Daniel Hast || [[#Hast | Clock arithmetic and perfect squares: a "Golden Theorem" of reciprocity]] ||<br />
|-<br />
| November 3, 2014 || Alisha Zachariah || [[#TBA | Infinity]] ||<br />
|-<br />
| November 10, 2014 || Marko Budisic || [[#Marko Budisic | Mathematics of epidemics ]] ||<br />
|-<br />
| November 17, 2014 || Nigel Boston || [[#Nigel Boston | Same bad channel]] ||<br />
|-<br />
| <strike>November 24, 2014</strike> || <strike>Daniel Erman</strike> || [[#TBA | <strike>How to catch a (data) thief </strike> Cancelled or weather]] ||<br />
|-<br />
| December 1, 2014 || Daniel Erman || [[#TBA | How to catch a (data) thief]] ||<br />
|-<br />
! colspan="4" style="background: #ffdead;" align="center" | Spring 2015 <br />
|-<br />
| <strike>January 26, 2015 </strike> || TBA || [[#TBA | Coming soon!]] ||<br />
|-<br />
| February 2, 2015 || Soledad Benguria || [[#TBA | Exploring Palindromes]] ||<br />
|-<br />
| February 9, 2015 || Jeff Linderoth|| [[#TBA | Coming soon!]] ||<br />
|-<br />
| February 16, 2015 || Simon Marshall || [[#Simon Marshall | The Ant Walk]] ||<br />
|-<br />
| February 23, 2015 || Uri Andrews || [[#TBA | Coming soon!]] ||<br />
|-<br />
| March 2, 2015 || Jordan Ellenberg|| [[#TBA | Coming soon!]] ||<br />
|-<br />
| March 9, 2015 || Ali Lynch || [[#TBA | Mathematical Games and Winning Strategies]] ||<br />
|-<br />
| March 16, 2015 || Daniel Schultheis || [[#TBA | Picture Hanging and Secret Algebra]] ||<br />
|-<br />
| March 23, 2015 || Betsy Stovall|| [[#Ches | Divisibility Cheats]] ||<br />
|-<br />
| March 30, 2015 || No meeting|| [[#TBA | UW Spring Break]] ||<br />
|-<br />
| April 6, 2015 || Julie Mitchell || [[#Julie Mitchell | Protein Folding and Robot Dances: Understanding the Basics of Kinematic Motion]] ||<br />
|-<br />
| April 13, 2015 || Jessica Lin ||[[#TBA | Coming soon!]] ||<br />
|-<br />
| April 20, 2015 || DJ Bruce ||[[#TBA | Coming soon!]] ||<br />
|-<br />
| April 27, 2015 || David Anderson ||[[#TBA | Coming soon!]] ||<br />
|-<br />
| May 4, 2015 || Daniel Ross ||[[#TBA | Coming soon!]] ||<br />
|-<br />
| May 11, 2015 || Grace Deane ||[[#TBA |Last meeting of semester!]] ||<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
== Abstracts ==<br />
<br />
===Philip Matchett Wood=== <br />
''Pictures and Puzzles''<br />
<br />
When does a simple picture solve a tricky puzzle? Come and learn about how line-and-dot drawing can solve complex puzzles, and create some new puzzles besides!<br />
<br />
===DJ Bruce=== <br />
''Is any knot the unknot?<br />
<br />
Abstract: You're walking home from school, and you pull out your head phones to listen to some tunes. However, inevitably they are a horribly tangled mess, but are they really a knot? We'll talk about what exactly is a knot, and how we can tell when something is not the unknot.<br />
<br />
===David Sondak===<br />
''Fluids, Math and Oobleck!''<br />
<br />
We will explore the magical world of fluids and their relationship to mathematics. As an example of fluids and math in the real world, we will make the living fluid oobleck and discuss some of its mathematical properties.<br />
<br />
=== George Craciun===<br />
''Proofs without words (but with plenty of pictures)''<br />
<br />
We will discuss mathematical proofs that can be done using only pictures or figures. If you want to see many such examples you can check out the book "Proofs without Words: Exercises in Visual Thinking" by Roger B. Nelsen. For more information also look at the wikipedia page http://en.wikipedia.org/wiki/Proof_without_words , where you can find links to Java Applets that show animations of proofs without words, such as http://usamts.org/Gallery/G_Gallery.php .<br />
<br />
<br />
=== Daniel Hast===<br />
''Clock arithmetic and perfect squares: a "Golden Theorem" of reciprocity''<br />
<br />
We'll explore systems of arithmetic where numbers loop back around to zero (like the hours on a clock!), called "modular arithmetic". Which numbers are perfect squares in such systems? Gauss, one of the greatest mathematicians in history, called the remarkable answer the "golden theorem".<br />
<br />
=== Alisha Zachariah===<br />
''What is infinity anyway''<br />
<br />
Infinity has a long history of having confounded and fascinated thinkers. We will take a look at some fundamental problems that early mathematicians grappled with and see some ways to understand infinity that have contributed to how we do math today.<br />
<br />
===Marko Budisic===<br />
''Mathematics of epidemics''<br />
<br />
Infectious diseases in our communities often make it into daily conversation: "There's a nasty cold going around.", "It's the flu season, get your shots.", and even, "There are news of a zombie outbreak!" Come hear how math gets applied to something as messy as spread of disease. We will use our wits, pencils, and computers to understand the progress of headaches, common cold, zombie outbreaks, and even ebola, a disease that is currently making the news.<br />
<br />
===Nigel Boston===<br />
''Same bad channel''<br />
<br />
How do we get such clear photos of the comet in the news?<br />
A 20 watt transmitter sends signals 500 million km through space to<br />
us and yet amazingly they survive this ordeal error-free. What's<br />
behind this is error-correcting codes. I'll give some of the basics,<br />
some related puzzles, and some challenges.<br />
<br />
===Soledad Benguria===<br />
''Exploring Palindromes''<br />
<br />
A Palindrome is a word or a number that reads the same forward and backwards. For example, Hannah, radar and civic are palindromic words, and 34743, 6446 are palindromic numbers. We will explore some curious properties of palindromes, and talk about what makes the number 196 special. <br />
<br />
===Simon Marshall===<br />
''The Ant Walk''<br />
<br />
An ant is walking on a grid in the plane, but it can only move north or east. How many ways are there for it to get from one square to another? The numbers that appear when we answer this question have a wealth of interesting properties.<br />
<br />
<br />
<br />
===Betsy Stovall===<br />
''Divisibility Cheats''<br />
<br />
We will discuss simple ways to determine whether one number is evenly divisible by a smaller one and also how to prove these facts. If time permits, we will also look at divisibility rules in bases other than 10. <br />
<br />
===Julie Mitchell=== <br />
''Protein Folding and Robot Dances: Understanding the Basics of Kinematic Motion''<br />
<br />
We will learn about motion subject to constraints. Mathematics based on these principles helps us build robots, explains human motion, and helps us model the shape of proteins like enzymes and antibodies. <br />
<br />
==[[Archived Math Circle Material]]==<br />
[[Archived Math Circle Material]]<br />
<br />
=Link for presenters (in progress)=<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=9371Applied/Physical Applied Math2015-02-11T21:12:27Z<p>Marko: /* Spring 2015 */</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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2015 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|Jan 22<br />
|Faculty meeting<br />
|<br />
|-<br />
|Jan 29<br />
|Saverio<br />
|Optimal geometries in liquid crystals<br />
|-<br />
|Feb 5<br />
|Will Mitchell<br />
|Lauga, [http://scitation.aip.org/content/aip/journal/pof2/26/8/10.1063/1.4891969 Locomotion in complex fluids: Integral theorems], Phys. Fluids (2014)<br />
|-<br />
|Feb 12<br />
|Marko<br />
|Koopman Modes, Dynamic Mode Decomposition, and POD [http://dx.doi.org/10.1016/j.jfluidstructs.2014.04.002 Zhang], J of Fl and Struct (2014)<br />
|-<br />
|Feb 19<br />
|Faculty meeting<br />
|(moved from Feb 12 due to Gloria's absence)<br />
|-<br />
|Feb 26<br />
|Jean-Luc<br />
|<br />
|-<br />
|Mar 5<br />
|Peter<br />
|<br />
|-<br />
|Mar 12<br />
|Faculty meeting<br />
|<br />
|-<br />
|Mar 19<br />
|Jim<br />
|<br />
|-<br />
|Mar 26<br />
|Lei Li<br />
|<br />
|-<br />
|Apr 2<br />
|Colin<br />
|<br />
|-<br />
|Apr 9<br />
|Faculty meeting<br />
|<br />
|-<br />
|Apr 16<br />
|Tom<br />
|<br />
|-<br />
|Apr 23<br />
|Keith<br />
|<br />
|-<br />
|Apr 30<br />
|<br />
|<br />
|-<br />
|May 7<br />
|Faculty meeting<br />
|<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absS15&diff=9290Applied/ACMS/absS152015-01-30T19:12:35Z<p>Marko: /* ACMS Abstracts: Spring 2015 */</p>
<hr />
<div>= ACMS Abstracts: Spring 2015 =<br />
<br />
=== Irene Kyza (U Dundee) ===<br />
<br />
''Adaptivity and blowup detection for semilinear evolution convection-diffusion equations based on a posteriori error control''<br />
<br />
We discuss recent results on the a posteriori error control and adaptivity for an evolution semilinear convection-diffusion model problem with possible blowup in finite time. This belongs to the broad class of partial differential equations describing e.g., tumor growth,chemotaxis and cell modelling. In particular, we derive a posteriori error estimates that are conditional (estimates which are valid under conditions of a posteriori type) for an interior penalty discontinuous Galerkin (dG) implicit-explicit (IMEX) method using a continuation argument. Compared to a previous work, the obtained conditions are more localised and allow the efficient error control near the blowup time. Utilising the conditional a posteriori estimator we are able to propose an adaptive algorithm that appears to perform satisfactorily. In particular, it leads to good approximation of the blowup time and of the exact solution close to the blowup. Numerical experiments illustrate and complement our theoretical results. This is joint work with A. Cangiani, E.H. Georgoulis, and S. Metcalfe from the University of Leicester.<br />
<br />
=== Daniel Vimont (UW) ===<br />
<br />
''Linear Inverse Modeling of Central and East Pacific El Niño / Southern Oscillation (ENSO) Events''<br />
<br />
Research on the structure and evolution of individual El Niño / Southern Oscillation (ENSO) events has identified two categories of ENSO event characteristics that can be defined by maximum equatorial SST anomalies centered in the Central Pacific (around the dateline to 150 deg. W; CP events) or in the Eastern Pacific (east of about 150 deg. W; EP events). The distinction between these two events is not just academic: both types of event evolve differently, implying different predictability; the events tend to have different maximum amplitude; and the global teleconnection differs between each type of event. <br />
<br />
In this presentation I will (i) describe the Linear Inverse Modeling (LIM) technique, (ii) apply LIM to determine an empirical dynamical operator that governs the evolution of tropical Pacific climate variability, (iii) define norms under which initial conditions can be derived that optimally lead to growth of CP or EP ENSO events, and (iv) identify patterns of stochastic forcing that are responsible for exciting each type of event.<br />
<br />
=== Tao Zhou (Chinese Academy of Sciences) ===<br />
<br />
''The Christoffel function weighted least-squares for stochastic collocation approximations: applications to Uncertainty Quantification''<br />
<br />
We shall consider the multivariate stochastic collocation methods on unstructured grids. The motivation for such a study is the applications in parametric Uncertainty Quantification (UQ). We will first give a general framework of stochastic collocation methods, which include approaches such as compressed sensing, least-squares, and interpolation. Particular attention will be then given to the least-squares approach, and we will review recent progresses in this topic.<br />
<br />
=== Elaine Spiller (Marquette) ===<br />
<br />
TBA</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=9289Applied/ACMS2015-01-30T19:12:10Z<p>Marko: /* Spring 2015 Semester */</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://lists.math.wisc.edu/listinfo/acms mailing list] website.<br />
<br />
<br><br />
<br />
== Spring 2015 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Jan 23<br />
|[http://www.maths.dundee.ac.uk/ikyza/IreneKyza/ Irene Kyza] (U Dundee)<br />
|''[[Applied/ACMS/absS15#Irene Kyza (U Dundee)|Adaptivity and blowup detection for semilinear evolution convection-diffusion equations based on a posteriori error control]]''<br />
|Shi Jin <br />
|-<br />
|Jan 30<br />
|[http://www.aos.wisc.edu/~dvimont/ Daniel Vimont] (UW)<br />
|''[[Applied/ACMS/absS15#Daniel Vimont (UW)|Linear Inverse Modeling of Central and East Pacific El Niño / Southern Oscillation (ENSO) Events]]''<br />
|Sam, Saverio<br />
|-<br />
|Feb 6<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Feb 13<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Feb 20<br />
|[http://jbfreund.mechse.illinois.edu/ Jonathan Freund] (U Illinois)<br />
|''[[Applied/ACMS/absS15#Jonathan Freund (U Illinois)|TBA]]''<br />
|Saverio<br />
|-<br />
|Feb 27<br />
|[http://people.math.umass.edu/~markos/ Markos Katsoulaiks] (U Mass Amherst)<br />
|''[[Applied/ACMS/absS15#Markos Katsoulaiks (U Mass Amherst)|TBA]]''<br />
|Shi Jin<br />
|-<br />
|Mar 6<br />
|TBA<br />
|TBA<br />
|<br />
|-<br />
|Mar 13<br />
|[http://dauns.math.tulane.edu/~ljf/ Lisa Fauci] (Tulane)<br />
|''[[Applied/ACMS/absS15#Lisa Fauci (Tulane)|TBA]]''<br />
|Saverio<br />
|-<br />
|Mar 20<br />
|[http://www.seas.upenn.edu/directory/profile.php?ID=3 Paulo Arratia] (U Penn)<br />
|''[[Applied/ACMS/absS15#Paulo Arratia (U Penn)|TBA]]''<br />
|Saverio<br />
|-<br />
|''Wed. Mar 25''<br />
|[http://www.cc.ac.cn/staff/tzhou.html Tao Zhou] (Chinese Academy of Sciences)<br />
|''[[Applied/ACMS/absS15#Tao Zhou (Chinese Academy of Sciences)|The Christoffel function weighted least-squares for stochastic<br />
collocation approximations: applications to Uncertainty Quantification]]''<br />
|Shi Jin<br />
|-<br />
|Apr 3<br />
|<br />
|Spring break<br />
|<br />
|-<br />
|''Wed. Apr 8''<br />
|[http://personal.maths.surrey.ac.uk/st/bc0012/ Bin Cheng] (University of Surrey)<br />
|''[[Applied/ACMS/absS15#Bin Cheng (University of Surrey)|TBA]]''<br />
|Shi Jin<br />
|<br />
|-<br />
|Apr 10<br />
|[http://banajim.myweb.port.ac.uk/ Murad Banaji] (University of Portsmouth)<br />
|''[[Applied/ACMS/absS15#Murad Banaji (University of Portsmouth)|TBA]]''<br />
|Craciun<br />
|<br />
|-<br />
|Apr 17<br />
|[http://pages.cs.wisc.edu/~swright/ Stephen Wright] (UW)<br />
|''[[Applied/ACMS/absS15#Stephen Wright (UW)|TBA]]''<br />
|Saverio<br />
|-<br />
|Apr 24<br />
|[https://vivo.brown.edu/display/tpowers Thomas Powers] (Brown)<br />
|''[[Applied/ACMS/absS15#Thomas Powers (Brown)|TBA]]''<br />
|Saverio<br />
|-<br />
|May 1<br />
|[http://www.marquette.edu/mscs/facstaff-spiller.shtml Elaine Spiller] (Marquette)<br />
|''[[Applied/ACMS/absS15#Elaine Spiller (Marquette)|TBA]]''<br />
|Budisic<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=9264Applied/Physical Applied Math2015-01-28T20:49:54Z<p>Marko: /* Spring 2015 */</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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2015 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|Jan 22<br />
|Faculty meeting<br />
|<br />
|-<br />
|Jan 29<br />
|Saverio<br />
|Optimal geometries in liquid crystals<br />
|-<br />
|Feb 5<br />
|<br />
|<br />
|-<br />
|Feb 12<br />
|Marko<br />
|<br />
|-<br />
|Feb 19<br />
|Faculty meeting<br />
|(moved from Feb 12 due to Gloria's absence)<br />
|-<br />
|Feb 26<br />
|Jean-Luc<br />
|<br />
|-<br />
|Mar 5<br />
|<br />
|<br />
|-<br />
|Mar 12<br />
|Faculty meeting<br />
|<br />
|-<br />
|Mar 19<br />
|<br />
|<br />
|-<br />
|Mar 26<br />
|<br />
|<br />
|-<br />
|Apr 2<br />
|<br />
|<br />
|-<br />
|Apr 9<br />
|Faculty meeting<br />
|<br />
|-<br />
|Apr 16<br />
|<br />
|<br />
|-<br />
|Apr 23<br />
|<br />
|<br />
|-<br />
|Apr 30<br />
|<br />
|<br />
|-<br />
|May 7<br />
|Faculty meeting<br />
|<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9063Colloquia/Fall182015-01-06T15:29:29Z<p>Marko: /* Spring 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Spring 2015 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| January 23<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| January 30<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| February 6<br />
| Morris Hirsch (UC Berkeley and UW Madison)<br />
| Fixed points of Lie group actions<br />
| Stovall<br />
|-<br />
| February 13<br />
| [http://www.math.ucsb.edu/~mputinar/ Mihai Putinar] (UC Santa Barbara, Newcastle University)<br />
| [[Colloquia#February 12: Mihai Putinar (UC Santa Barbara) | Quillen’s property of real algebraic varieties]]<br />
| Budišić<br />
|-<br />
| February 20<br />
| [http://www.mathcs.emory.edu/~dzb/ David Zureick-Brown] (Emory University)<br />
| TBA<br />
| Ellenberg<br />
|-<br />
| February 27<br />
| [http://www.math.rochester.edu/people/faculty/allan/ Allan Greenleaf] (University of Rochester)<br />
| TBA<br />
| Seeger<br />
|<br />
|-<br />
| March 6<br />
| [http://math.mit.edu/~lguth/ Larry Guth] (MIT)<br />
| TBA<br />
| Stovall<br />
|-<br />
| March 13<br />
|[http://www.ma.utexas.edu/text/webpages/gordon.html Cameron Gordon] (UT-Austin)<br />
| TBA<br />
| Maxim<br />
|-<br />
| March 20<br />
|[http://banajim.myweb.port.ac.uk Murad Banaji] (University of Portsmouth)<br />
| TBA<br />
| Craciun<br />
|-<br />
| March 27<br />
|[http://php.indiana.edu/~korr/ Kent Orr] (Indiana University at Bloomigton)<br />
| TBA<br />
| Maxim<br />
|-<br />
| April 3<br />
| University holiday<br />
|<br />
|<br />
|-<br />
| April 10<br />
| [http://www-users.math.umn.edu/~jyfoo/ Jasmine Foo] (University of Minnesota)<br />
|TBA<br />
| Roch, WIMAW<br />
|-<br />
| April 17<br />
| [http://www.math.uiuc.edu/~kkirkpat/ Kay Kirkpatrick] (University of Illinois-Urbana Champaign)<br />
| TBA<br />
| Stovall<br />
|-<br />
| April 24<br />
| Marianna Csornyei (University of Chicago)<br />
| TBA<br />
| Seeger, Stovall<br />
|-<br />
| May 1<br />
| [http://www.math.washington.edu/~bviray/ Bianca Viray] (University of Washington)<br />
| TBA<br />
| Erman<br />
|-<br />
| May 8<br />
| [http://www.math.ucla.edu/~mroper/www/Home.html Marcus Roper] (UCLA)<br />
| TBA<br />
| Roch<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===February 12: Mihai Putinar (UC Santa Barbara)===<br />
<br />
====Quillen’s property of real algebraic varieties====<br />
<br />
A famous observation discovered by Fejer and Riesz a century ago<br />
is the quintessential algebraic component of every spectral decomposition<br />
result. It asserts that every non-negative polynomial on the unit circle is a<br />
hermitian square. About half a century ago, Quillen proved that a positive polynomial<br />
on an odd dimensional sphere is a sum of hermitian squares. Fact independently<br />
rediscovered much later by D’Angelo and Catlin, respectively Athavale. The main subject of<br />
the talk will be: on which real algebraic sub varieties of <math>\mathbb{C}^n</math> is Quillen theorem valid?<br />
An interlace between real algebraic geometry, quantization techniques and complex<br />
hermitian geometry will provide an answer to the above question, and more.<br />
Based a recent work with Claus Scheiderer and John D’Angelo.<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9062Colloquia/Fall182015-01-06T15:27:14Z<p>Marko: /* Spring 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Spring 2015 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| January 23<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| January 30<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| February 6<br />
| Morris Hirsch (UC Berkeley and UW Madison)<br />
| Fixed points of Lie group actions<br />
| Stovall<br />
|-<br />
| February 13<br />
| [http://www.math.ucsb.edu/~mputinar/ Mihai Putinar] (UC Santa Barbara, Newcastle University)<br />
| [[Quillen’s property of real algebraic varieties]]<br />
| Budišić<br />
|-<br />
| February 20<br />
| [http://www.mathcs.emory.edu/~dzb/ David Zureick-Brown] (Emory University)<br />
| TBA<br />
| Ellenberg<br />
|-<br />
| February 27<br />
| [http://www.math.rochester.edu/people/faculty/allan/ Allan Greenleaf] (University of Rochester)<br />
| TBA<br />
| Seeger<br />
|<br />
|-<br />
| March 6<br />
| [http://math.mit.edu/~lguth/ Larry Guth] (MIT)<br />
| TBA<br />
| Stovall<br />
|-<br />
| March 13<br />
|[http://www.ma.utexas.edu/text/webpages/gordon.html Cameron Gordon] (UT-Austin)<br />
| TBA<br />
| Maxim<br />
|-<br />
| March 20<br />
|[http://banajim.myweb.port.ac.uk Murad Banaji] (University of Portsmouth)<br />
| TBA<br />
| Craciun<br />
|-<br />
| March 27<br />
|[http://php.indiana.edu/~korr/ Kent Orr] (Indiana University at Bloomigton)<br />
| TBA<br />
| Maxim<br />
|-<br />
| April 3<br />
| University holiday<br />
|<br />
|<br />
|-<br />
| April 10<br />
| [http://www-users.math.umn.edu/~jyfoo/ Jasmine Foo] (University of Minnesota)<br />
|TBA<br />
| Roch, WIMAW<br />
|-<br />
| April 17<br />
| [http://www.math.uiuc.edu/~kkirkpat/ Kay Kirkpatrick] (University of Illinois-Urbana Champaign)<br />
| TBA<br />
| Stovall<br />
|-<br />
| April 24<br />
| Marianna Csornyei (University of Chicago)<br />
| TBA<br />
| Seeger, Stovall<br />
|-<br />
| May 1<br />
| [http://www.math.washington.edu/~bviray/ Bianca Viray] (University of Washington)<br />
| TBA<br />
| Erman<br />
|-<br />
| May 8<br />
| [http://www.math.ucla.edu/~mroper/www/Home.html Marcus Roper] (UCLA)<br />
| TBA<br />
| Roch<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===February 12: Mihai Putinar (UC Santa Barbara)===<br />
<br />
====Quillen’s property of real algebraic varieties====<br />
<br />
A famous observation discovered by Fejer and Riesz a century ago<br />
is the quintessential algebraic component of every spectral decomposition<br />
result. It asserts that every non-negative polynomial on the unit circle is a<br />
hermitian square. About half a century ago, Quillen proved that a positive polynomial<br />
on an odd dimensional sphere is a sum of hermitian squares. Fact independently<br />
rediscovered much later by D’Angelo and Catlin, respectively Athavale. The main subject of<br />
the talk will be: on which real algebraic sub varieties of <math>\mathbb{C}^n</math> is Quillen theorem valid?<br />
An interlace between real algebraic geometry, quantization techniques and complex<br />
hermitian geometry will provide an answer to the above question, and more.<br />
Based a recent work with Claus Scheiderer and John D’Angelo.<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9061Colloquia/Fall182015-01-06T15:26:07Z<p>Marko: /* Geometry and counting in the Heisenberg group */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Spring 2015 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| January 23<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| January 30<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| February 6<br />
| Morris Hirsch (UC Berkeley and UW Madison)<br />
| Fixed points of Lie group actions<br />
| Stovall<br />
|-<br />
| February 13<br />
| [http://www.math.ucsb.edu/~mputinar/ Mihai Putinar] (UC Santa Barbara, Newcastle University)<br />
| TBA<br />
| Budišić<br />
|-<br />
| February 20<br />
| [http://www.mathcs.emory.edu/~dzb/ David Zureick-Brown] (Emory University)<br />
| TBA<br />
| Ellenberg<br />
|-<br />
| February 27<br />
| [http://www.math.rochester.edu/people/faculty/allan/ Allan Greenleaf] (University of Rochester)<br />
| TBA<br />
| Seeger<br />
|<br />
|-<br />
| March 6<br />
| [http://math.mit.edu/~lguth/ Larry Guth] (MIT)<br />
| TBA<br />
| Stovall<br />
|-<br />
| March 13<br />
|[http://www.ma.utexas.edu/text/webpages/gordon.html Cameron Gordon] (UT-Austin)<br />
| TBA<br />
| Maxim<br />
|-<br />
| March 20<br />
|[http://banajim.myweb.port.ac.uk Murad Banaji] (University of Portsmouth)<br />
| TBA<br />
| Craciun<br />
|-<br />
| March 27<br />
|[http://php.indiana.edu/~korr/ Kent Orr] (Indiana University at Bloomigton)<br />
| TBA<br />
| Maxim<br />
|-<br />
| April 3<br />
| University holiday<br />
|<br />
|<br />
|-<br />
| April 10<br />
| [http://www-users.math.umn.edu/~jyfoo/ Jasmine Foo] (University of Minnesota)<br />
|TBA<br />
| Roch, WIMAW<br />
|-<br />
| April 17<br />
| [http://www.math.uiuc.edu/~kkirkpat/ Kay Kirkpatrick] (University of Illinois-Urbana Champaign)<br />
| TBA<br />
| Stovall<br />
|-<br />
| April 24<br />
| Marianna Csornyei (University of Chicago)<br />
| TBA<br />
| Seeger, Stovall<br />
|-<br />
| May 1<br />
| [http://www.math.washington.edu/~bviray/ Bianca Viray] (University of Washington)<br />
| TBA<br />
| Erman<br />
|-<br />
| May 8<br />
| [http://www.math.ucla.edu/~mroper/www/Home.html Marcus Roper] (UCLA)<br />
| TBA<br />
| Roch<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===February 12: Mihai Putinar (UC Santa Barbara)===<br />
<br />
====Quillen’s property of real algebraic varieties====<br />
<br />
A famous observation discovered by Fejer and Riesz a century ago<br />
is the quintessential algebraic component of every spectral decomposition<br />
result. It asserts that every non-negative polynomial on the unit circle is a<br />
hermitian square. About half a century ago, Quillen proved that a positive polynomial<br />
on an odd dimensional sphere is a sum of hermitian squares. Fact independently<br />
rediscovered much later by D’Angelo and Catlin, respectively Athavale. The main subject of<br />
the talk will be: on which real algebraic sub varieties of <math>\mathbb{C}^n</math> is Quillen theorem valid?<br />
An interlace between real algebraic geometry, quantization techniques and complex<br />
hermitian geometry will provide an answer to the above question, and more.<br />
Based a recent work with Claus Scheiderer and John D’Angelo.<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9060Colloquia/Fall182015-01-06T15:25:49Z<p>Marko: /* Abstracts */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Spring 2015 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| January 23<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| January 30<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| February 6<br />
| Morris Hirsch (UC Berkeley and UW Madison)<br />
| Fixed points of Lie group actions<br />
| Stovall<br />
|-<br />
| February 13<br />
| [http://www.math.ucsb.edu/~mputinar/ Mihai Putinar] (UC Santa Barbara, Newcastle University)<br />
| TBA<br />
| Budišić<br />
|-<br />
| February 20<br />
| [http://www.mathcs.emory.edu/~dzb/ David Zureick-Brown] (Emory University)<br />
| TBA<br />
| Ellenberg<br />
|-<br />
| February 27<br />
| [http://www.math.rochester.edu/people/faculty/allan/ Allan Greenleaf] (University of Rochester)<br />
| TBA<br />
| Seeger<br />
|<br />
|-<br />
| March 6<br />
| [http://math.mit.edu/~lguth/ Larry Guth] (MIT)<br />
| TBA<br />
| Stovall<br />
|-<br />
| March 13<br />
|[http://www.ma.utexas.edu/text/webpages/gordon.html Cameron Gordon] (UT-Austin)<br />
| TBA<br />
| Maxim<br />
|-<br />
| March 20<br />
|[http://banajim.myweb.port.ac.uk Murad Banaji] (University of Portsmouth)<br />
| TBA<br />
| Craciun<br />
|-<br />
| March 27<br />
|[http://php.indiana.edu/~korr/ Kent Orr] (Indiana University at Bloomigton)<br />
| TBA<br />
| Maxim<br />
|-<br />
| April 3<br />
| University holiday<br />
|<br />
|<br />
|-<br />
| April 10<br />
| [http://www-users.math.umn.edu/~jyfoo/ Jasmine Foo] (University of Minnesota)<br />
|TBA<br />
| Roch, WIMAW<br />
|-<br />
| April 17<br />
| [http://www.math.uiuc.edu/~kkirkpat/ Kay Kirkpatrick] (University of Illinois-Urbana Champaign)<br />
| TBA<br />
| Stovall<br />
|-<br />
| April 24<br />
| Marianna Csornyei (University of Chicago)<br />
| TBA<br />
| Seeger, Stovall<br />
|-<br />
| May 1<br />
| [http://www.math.washington.edu/~bviray/ Bianca Viray] (University of Washington)<br />
| TBA<br />
| Erman<br />
|-<br />
| May 8<br />
| [http://www.math.ucla.edu/~mroper/www/Home.html Marcus Roper] (UCLA)<br />
| TBA<br />
| Roch<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===February 12: Mihai Putinar (UC Santa Barbara)===<br />
<br />
====Geometry and counting in the Heisenberg group====<br />
<br />
A famous observation discovered by Fejer and Riesz a century ago<br />
is the quintessential algebraic component of every spectral decomposition<br />
result. It asserts that every non-negative polynomial on the unit circle is a<br />
hermitian square. About half a century ago, Quillen proved that a positive polynomial<br />
on an odd dimensional sphere is a sum of hermitian squares. Fact independently<br />
rediscovered much later by D’Angelo and Catlin, respectively Athavale. The main subject of<br />
the talk will be: on which real algebraic sub varieties of <math>\mathbb{C}^n</math> is Quillen theorem valid?<br />
An interlace between real algebraic geometry, quantization techniques and complex<br />
hermitian geometry will provide an answer to the above question, and more.<br />
Based a recent work with Claus Scheiderer and John D’Angelo.<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Colloquia/Fall18&diff=9059Colloquia/Fall182015-01-06T15:24:17Z<p>Marko: /* Spring 2015 */</p>
<hr />
<div>__NOTOC__<br />
<br />
= Mathematics Colloquium =<br />
<br />
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.<br />
<br />
== Spring 2015 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
| January 23<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| January 30<br />
| Tentatively reserved for possible interview<br />
|<br />
|<br />
|-<br />
| February 6<br />
| Morris Hirsch (UC Berkeley and UW Madison)<br />
| Fixed points of Lie group actions<br />
| Stovall<br />
|-<br />
| February 13<br />
| [http://www.math.ucsb.edu/~mputinar/ Mihai Putinar] (UC Santa Barbara, Newcastle University)<br />
| TBA<br />
| Budišić<br />
|-<br />
| February 20<br />
| [http://www.mathcs.emory.edu/~dzb/ David Zureick-Brown] (Emory University)<br />
| TBA<br />
| Ellenberg<br />
|-<br />
| February 27<br />
| [http://www.math.rochester.edu/people/faculty/allan/ Allan Greenleaf] (University of Rochester)<br />
| TBA<br />
| Seeger<br />
|<br />
|-<br />
| March 6<br />
| [http://math.mit.edu/~lguth/ Larry Guth] (MIT)<br />
| TBA<br />
| Stovall<br />
|-<br />
| March 13<br />
|[http://www.ma.utexas.edu/text/webpages/gordon.html Cameron Gordon] (UT-Austin)<br />
| TBA<br />
| Maxim<br />
|-<br />
| March 20<br />
|[http://banajim.myweb.port.ac.uk Murad Banaji] (University of Portsmouth)<br />
| TBA<br />
| Craciun<br />
|-<br />
| March 27<br />
|[http://php.indiana.edu/~korr/ Kent Orr] (Indiana University at Bloomigton)<br />
| TBA<br />
| Maxim<br />
|-<br />
| April 3<br />
| University holiday<br />
|<br />
|<br />
|-<br />
| April 10<br />
| [http://www-users.math.umn.edu/~jyfoo/ Jasmine Foo] (University of Minnesota)<br />
|TBA<br />
| Roch, WIMAW<br />
|-<br />
| April 17<br />
| [http://www.math.uiuc.edu/~kkirkpat/ Kay Kirkpatrick] (University of Illinois-Urbana Champaign)<br />
| TBA<br />
| Stovall<br />
|-<br />
| April 24<br />
| Marianna Csornyei (University of Chicago)<br />
| TBA<br />
| Seeger, Stovall<br />
|-<br />
| May 1<br />
| [http://www.math.washington.edu/~bviray/ Bianca Viray] (University of Washington)<br />
| TBA<br />
| Erman<br />
|-<br />
| May 8<br />
| [http://www.math.ucla.edu/~mroper/www/Home.html Marcus Roper] (UCLA)<br />
| TBA<br />
| Roch<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
== Past Colloquia ==<br />
<br />
[[Colloquia/Fall2014|Fall 2014]]<br />
<br />
[[Colloquia/Spring2014|Spring 2014]]<br />
<br />
[[Colloquia/Fall2013|Fall 2013]]<br />
<br />
[[Colloquia 2012-2013|Spring 2013]]<br />
<br />
[[Colloquia 2012-2013#Fall 2012|Fall 2012]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=8805Applied/ACMS2014-11-13T15:58:28Z<p>Marko: /* Fall 2014 Semester */</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://lists.math.wisc.edu/listinfo/acms mailing list] website.<br />
<br />
<br><br />
<br />
== Fall 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sept. 12<br />
|[http://agis.athanassoulis.net/ Agisilaos Athanasoulis] (Leicester)<br />
|''[[Applied/ACMS/absF14#Agisilaos Athanasoulis (Leicester)|Semiclassical regularisation for ill-posed classical flows: microlocal coarse-graining beyond Wigner measures]]''<br />
|Shi Jin<br />
|-<br />
|Sept. 19<br />
|[http://www.sci.utah.edu/~dxiu/ Dongbin Xiu] (Utah)<br />
|''[[Applied/ACMS/absF14#Dongbin Xiu (Utah)|Uncertainty quantification algorithms for large-scale systems]]''<br />
|Shi Jin<br />
|-<br />
|Sept. 26<br />
|[http://home.physics.wisc.edu/~boldyrev/ Stanislav Boldyrev] (UW)<br />
|''[[Applied/ACMS/absF14#Stanislav Boldyrev (UW)|Recent results on magnetohydrodynamic turbulence]]''<br />
|Saverio and David<br />
|-<br />
|Oct. 3<br />
|[http://people.clarkson.edu/~ebollt/ Erik Bollt] (Clarkson)<br />
|''[[Applied/ACMS/absF14#Erik Bollt (Clarkson)|Shape coherence and finite-time curvature evolution]]''<br />
|Jean-Luc<br />
|-<br />
|'''Wed. Oct. 8'''<br />
|[http://www.math.unm.edu/~motamed/ Mohammad Motamed] (New Mexico)<br />
|''[[Applied/ACMS/absF14#Mohammad Motamed (New Mexico)|Uncertainty quantification for wave propagation problems, analysis and computation]]''<br />
|Shi Jin<br />
|-<br />
|Oct. 17 '''(4pm in VV B239)'''<br />
|[http://www.icse.cornell.edu/ziagroup/ Roseanna Zia] (Cornell)<br />
|''[[Applied/ACMS/absF14#Roseanna Zia (Cornell)|A micro-mechanical study of coarsening and rheology of colloidal gels: Cage building, cage hopping, and Smoluchowski’s ratchet]]''<br />
|Saverio<br />
|-<br />
|Oct. 31<br />
|[http://ins.sjtu.edu.cn/faculty/hudan Dan Hu] (SJTU)<br />
|''[[Applied/ACMS/absF14#Dan Hu (SJTU)|Optimization, adaptation, and initiation of biological transport networks]]''<br />
|Shi Jin<br />
|-<br />
|Nov. 7<br />
|[http://tchumley.public.iastate.edu/ Tim Chumley] (Iowa State)<br />
|''[[Applied/ACMS/absF14#Tim Chumley (Iowa State)|Random billiards and diffusion]]''<br />
|Saverio and Phil<br />
|-<br />
|'''Wed. Nov. 12 (in VV B223)'''<br />
|[http://www4.ncsu.edu/~acherto/ Alina Chertock] (NCSU)<br />
|''[[Applied/ACMS/absF14#Alina Chertock (NCSU)|Pedestrian flow models with slowdown interactions]]''<br />
|Shi Jin<br />
|-<br />
|Nov. 14<br />
|[http://www.math.wisc.edu/~sondak/ David Sondak] (UW)<br />
|''[[Applied/ACMS/absF14# David Sondak|Effect of Prandtl number on optimal scaling laws in Rayleigh-Benard convection]]''<br />
|Saverio<br />
|-<br />
|Nov. 21<br />
|[http://people.esam.northwestern.edu/~silber/ Mary Silber] (Northwestern)<br />
|''[[Applied/ACMS/absF14# Mary Silber|Spontaneous Pattern Formation in Models of Vegetation in Dryland Ecosystems]]''<br />
|Marko<br />
|-<br />
|Nov. 28<br />
|Thanksgiving recess<br />
|<br />
|-<br />
|Dec. 5<br />
|[http://labs.medmicro.wisc.edu/mcfall-ngai/ Margaret McFall-Ngai] (UW)<br />
|''[[Applied/ACMS/absF14# Margaret McFall-Ngai (UW)|TBA]]''<br />
|Saverio<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absF14&diff=8804Applied/ACMS/absF142014-11-13T15:57:28Z<p>Marko: /* ACMS Abstracts: Fall 2014 */</p>
<hr />
<div>= ACMS Abstracts: Fall 2014 =<br />
<br />
=== Agisilaos Athanasoulis (Leicester) ===<br />
<br />
''Semiclassical regularization for ill-posed classical flows: microlocal coarse-graining beyond Wigner measures''<br />
<br />
Wigner measures (WMs) have been successfully used as a parameter-free tool to provide homogenised descriptions of wave problems. Notable applications are the efficient simulation of large linear wave fields, and the painless resolution of linear caustics. However, their applicability to non-linear problems has been very limited.<br />
<br />
In this talk we discuss the role of smoothness of the underlying flow as a limiting factor in the applicability of WMs. Non-smooth flows are ill-posed for measures, and new phenomena are possible in that regime. For example, single wavepackets may be "split" cleanly into several new wavepackets. We introduce a modification of the WM approach, and show that it can capture successfully some of these new phenomena. These results include joint work with T. Paul, I. Kyza and Th. Katsaounis.<br />
<br />
The main idea behind this regularised scheme can be used to setup a unifying framework for several different approaches developed in the last few years. Some ideas about the extension of this framework to non-linear problems are also discussed.<br />
<br />
=== Dongbin Xiu (Utah) ===<br />
<br />
''Uncertainty quantification algorithms for large-scale systems''<br />
<br />
Abstract: The field of uncertainty quantification (UQ) has received an increasing amount of attention recently. Extensive research efforts have been devoted to it and many novel numerical techniques have been developed. These techniques aim to conduct stochastic simulations for very large-scale complex systems. Although remarkable progresses have been made, UQ simulations remains challenging due to their exceedingly high simulation cost for problems at extreme scales. In this talk I will discuss some of the recent developed UQ algorithms that are particularly suitable for extreme-scale simulations. These methods are (1) collocation based, such that they can be directly applied to systems with legacy simulation codes; and (2) capacity based, such that they deliver the (near) optimal simulation accuracy based on the available simulation capacity. In another word, these methods deliver the best UQ simulation results based on any given computational resource one can afford, which is often very limited at the extreme scales.<br />
<br />
=== Stanislav Boldyrev (UW) ===<br />
<br />
''Recent results on magnetohydrodynamic turbulence''<br />
<br />
Abstract: Magnetic plasma turbulence is observed over a broad range of scales in the natural systems such as the the solar corona, the solar wind, and the interstellar medium, where the Reynolds numbers far exceed the Reynolds numbers achievable in numerical experiments. Much attention is therefore drawn to the universal scaling properties of small-scale fluctuations, which can be reliably measured in the simulations and extrapolated to astrophysical scales. The recent numerical and phenomenological results on the scaling and structure of magnetohydrodynamic turbulence will be discussed.<br />
<br />
=== Erik Bollt (Clarkson) ===<br />
<br />
''Shape coherence and finite-time curvature evolution''<br />
<br />
Abstract: Mixing, and coherence are fundamental issues at the heart of understanding fluid dynamics and other non-autonomous dynamical systems. Here we define shape coherent sets from which we show that tangency of finite time stable foliations (related to a forward time perspective) and finite time unstable foliations (related to a “backwards time" perspective) serve a central role. We develop zero-angle curves, meaning non-hyperbolic splitting curves, by continuation from the implicit function theorem. Furthermore, slowly evolving curvature corresponds to shape coherence and therefore we introduce a finite-time curvature (FTC) evolution field to indicate the existence of shape coherent sets in a direct and graphical manner. Simple examples as well as from meteorology and oceanography.<br />
<br />
=== Roseanna Zia (Cornell) ===<br />
<br />
''A micro-mechanical study of coarsening and rheology of colloidal gels: Cage building, cage hopping, and Smoluchowski’s ratchet''<br />
<br />
Abstract: Reconfigurable soft solids such as viscoelastic gels have emerged in the past decade as a promising material in numerous applications ranging from engineered tissue to drug delivery to injectable sensors. These include colloidal gels, which microscopically comprise a scaffoldlike network of interconnected particles embedded in a solvent. Network bonds can be permanent or reversible, depending on the nature and strength of interparticle attractions. When attractions are on the order of just a few kT, bonds easily rupture and reform. On a macroscopic scale, bond reversibility allows a gel to transition from solidlike behavior during storage, to liquidlike behavior during flow (e.g., injection or shear), and back to solidlike behavior in situ. On a microscopic scale, thermal fluctuations of the solvent are occasionally strong enough to break colloidal bonds, temporarily allowing particles to migrate and exchange neighbors before rebonding to the network, leading to structural evolution over time. Prior studies of colloidal gels have examined evolution of length scales and dynamics such as decorrelation times. Left open were additional questions such as how the particle-rich regions are structured (liquidlike, glassy, crystalline), how restructuring takes place (via bulk diffusion, surface migration, coalescence of large structures), and the impact of the evolution on rheology. In this talk I discuss these themes as explored in our recent dynamic simulations. We find that the network strands comprise a glassy, immobile interior near random-close packing, enclosed by a liquidlike surface along which the diffusive migration of particles drives structural coarsening. We show that coarsening is a three-step process of cage forming, cage hopping, and cage arrest, where particles migrate to ever-deeper energy wells via “Smoluchowski’s ratchet.” Both elastic and viscous high-frequency moduli are found to scale with the square-root of the frequency, similar to the perfectly viscoelastic behavior of non-hydrodynamically interacting, purely repulsive dispersions. But here, the behavior is elastic over all frequencies, with a quantitative offset between elastic and viscous moduli, which owes its origin to the hindrance of diffusion by particle attractions. Propagation of this elasticity via the network gives rise to age-stiffening as the gel coarsens. This simple phenomenological model suggests a rescaling of the moduli on dominant network length scale that collapses moduli for all ages onto a single curve. We propose a Rouse-like theoretical model and, from it, derive an analytical expression that predicts the effects of structural aging on rheology whereby linear response can be determined at any age by measurement of dominant network length scale—or vice versa.<br />
<br />
=== Dan Hu (SJTU) ===<br />
<br />
''Optimization, adaptation, and initiation of biological transport networks''<br />
<br />
Blood vessel systems and leaf venations are typical biological transport networks. The energy consumption for such a system to perform its biological functions is determined by the network structure. In the first part of this talk, I will discuss the optimized structure of vessel networks, and show how the blood vessel system adapts itself to an optimized structure. Mathematical models are used to predict pruning vessels in the experiments of zebra fish. In the second part, I will discuss our recent modeling work on the initiation process of transport networks. Simulation results are used to illustrate how a tree-like structure is obtained from a continuum adaptation equation system, and how loops can exist in our model. Possible further application of this model will also be discussed.<br />
<br />
=== Tim Chumley (Iowa State) === <br />
<br />
''Random billiards and diffusion''<br />
<br />
We introduce a class of random dynamical systems derived from billiard maps and study a certain Markov chain derived from them. We then discuss the interplay between the billiard geometry and stochastic properties of the random system. The main results presented investigate the affect of billiard geometry on a diffusion process obtained from an appropriate scaling limit of the Markov chain.<br />
<br />
=== Alina Chertock (NCSU) ===<br />
<br />
''Pedestrian flow models with slowdown interactions''<br />
<br />
In this talk, I will discuss one-dimensional models for the behavior of pedestrians in a narrow street or corridor. I will first formulate a stochastic cellular automata model with explicit rules for pedestrians moving in two opposite directions. Coarse-grained mesoscopic and macroscopic analogs will then be carefully derived leading to the coupled system of PDEs for the density of the pedestrian traffic. The obtained first-order system of conservation laws is only conditionally hyperbolic and thus higher-order nonlinear diffusive corrections resulting in a parabolic macroscopic PDE model will be introduced. Finally, I will present a number of numerical experiments comparing and contrasting the behavior of the microscopic stochastic model and the resulting coarse-grained PDEs for various parameter settings and initial conditions. These numerical experiments demonstrate that the nonlinear diffusion is essential for reproducing the behavior of the stochastic system in the nonhyperbolic regime.<br />
<br />
=== David Sondak (UW) ===<br />
<br />
''Effect of Prandtl number on optimal scaling laws in Rayleigh-Benard convection''<br />
<br />
The determination of scaling laws for heat transport in Rayleigh-Benard convection is a long-standing problem. Rigorous upper bounds for heat transport have been derived in various mathematical and physical settings. In recent years, researchers have harnessed the power of computers to determine scaling laws in turbulent Rayleigh-Benard convection. In the present work we take a different approach and determine scaling laws for steady, unstable solutions that optimize heat transport. In this talk, the essential ideas and history behind the problem at hand are reviewed. Following this, a quick description of a numerical algorithm that has been developed to find the unstable, coherent solutions is presented. New results on optimal scaling laws at various values of the Prandtl number are discussed. Based on these observations, and with the rigorous upper bounds in mind, conclusions are drawn and implications for scaling laws are discussed.<br />
<br />
=== Mary Silber (Northwestern) ===<br />
<br />
''Spontaneous Pattern Formation in Models of Vegetation in Dryland Ecosystems''<br />
<br />
Semi-arid ecosystems frequently show striking patterns of vegetation cover when they are stressed by reduced precipitation. It has been suggested, on the basis of mathematical ecological models, that there may be a standard sequence to the patterns that form as the water input to the ecosystem decreases. Specifically, the vegetation cover goes from gap patterns, to labyrinthine patterns, to spot patterns as precipitation decreases. We examine this proposal from the perspective of equivariant bifurcation theory, and show that this is not the only generic possibility.</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Madison_Math_Circle&diff=8764Madison Math Circle2014-11-10T15:56:21Z<p>Marko: /* Meetings for Fall 2014 and Spring 2015 */</p>
<hr />
<div>=Weekly Meeting=<br />
We have a weekly meeting, <b>Monday at 6pm in 120 Ingraham Hall</b>, during the school year. <b>New students are welcome at any point! </b> There is no required registration, no fee, and the talks are independent of one another, so you can just show up any week. See below for directions. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in [http://goo.gl/maps/6k5IA Ingraham Hall] room 120, on the UW-Madison campus).<br />
<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] <br />
<br />
[[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html<br />
<br />
=All right, I want to come!=<br />
==Directions and parking==<br />
Meetings are held in 120 Ingraham Hall.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Ingraham_Map.jpg|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*Directly in front of Ingraham hall, 2 metered spots (25 minute max) in [http://goo.gl/maps/HhFUm Lot 11 off of Observatory Drive].<br />
*A 0.2 mile walk to Ingraham Hall via [http://goo.gl/maps/3IFaw these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Ingraham Hall via [http://goo.gl/maps/yFwNr these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.2 mile walk to Ingraham Hall via [http://goo.gl/maps/9NNNm these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.3 mile walk to Ingraham Hall via [http://goo.gl/maps/P156B these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
Sign up for our email list: https://lists.math.wisc.edu/listinfo/math-circle<br />
<br />
==Contact the organizers==<br />
If you have any questions, suggestions for topics, or so on, just email the '''organizers''' (Carolyn Abbott, Gheorghe Craciun, Daniel Erman, Lalit Jain, Ryan Julian, and Philip Matchett Wood): [mailto:math-circle-organizers@math.wisc.edu math-circle-organizers@math.wisc.edu]. We are always interested in feedback!<br />
<br />
==Report on Math Circle in 2013-14==<br />
Coming soon!<br />
<br />
==Flyer==<br />
Coming soon!<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our flyer at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Fall 2014 and Spring 2015=<br />
<br />
<center><br />
<br />
All talks are at '''6pm in [http://goo.gl/maps/6k5IA Ingraham Hall] room 120''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="4" style="background: #ffdead;" align="center" | Fall 2014 <br />
|-<br />
! Date and RSVP links!! Speaker !! Topic !! Link for more info<br />
|-<br />
| September 8, 2014 || Philip Matchett Wood || [[#Philip Matchett Wood | Pictures and Puzzles]] ||<br />
|-<br />
| September 15, 2014 || Jen Beichman || [[#TBA | Playing with geometric sums]] ||<br />
|-<br />
| September 22, 2014 || DJ Bruce || [[#TBA | Is any knot the unknot?]] ||<br />
|-<br />
| September 29, 2014 || Uri Andrews || [[#TBA | The games of Criss Cross and Brussels Sprouts]] ||<br />
|-<br />
| October 6, 2014 || David Sondak || [[#David Sondak | Fluids, Math, and Oobleck!]] ||<br />
|-<br />
| October 13, 2014 || George Craciun || [[#George Craciun | Proofs without words (but with plenty of pictures)]] ||<br />
|-<br />
| October 20, 2014 || Scott Hottovy || [[#TBA | Coming soon!]] ||<br />
|-<br />
| October 27, 2014 || Daniel Hast || [[#Hast | Clock arithmetic and perfect squares: a "Golden Theorem" of reciprocity]] ||<br />
|-<br />
| November 3, 2014 || Alisha Zachariah || [[#TBA | Infinity]] ||<br />
|-<br />
| November 10, 2014 || Marko Budisic || [[#Marko Budisic | Mathematics of epidemics ]] ||<br />
|-<br />
| November 17, 2014 || Nigel Boston || [[#TBA | Coming soon!]] ||<br />
|-<br />
| November 24, 2014 || TBA || [[#TBA | Coming soon!]] ||<br />
|-<br />
! colspan="4" style="background: #ffdead;" align="center" | Spring 2015 <br />
|-<br />
| January 26, 2015 || TBA || [[#TBA | Coming soon!]] ||<br />
|-<br />
| February 2, 2015 || TBA || [[#TBA | Coming soon!]] ||<br />
|-<br />
| February 9, 2015 || Jeff Linderoth|| [[#TBA | Coming soon!]] ||<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
== Abstracts ==<br />
<br />
===Philip Matchett Wood=== <br />
''Pictures and Puzzles''<br />
<br />
When does a simple picture solve a tricky puzzle? Come and learn about how line-and-dot drawing can solve complex puzzles, and create some new puzzles besides!<br />
<br />
===DJ Bruce=== <br />
''Is any knot the unknot?<br />
<br />
Abstract: You're walking home from school, and you pull out your head phones to listen to some tunes. However, inevitably they are a horribly tangled mess, but are they really a knot? We'll talk about what exactly is a knot, and how we can tell when something is not the unknot.<br />
<br />
===David Sondak===<br />
''Fluids, Math and Oobleck!''<br />
<br />
We will explore the magical world of fluids and their relationship to mathematics. As an example of fluids and math in the real world, we will make the living fluid oobleck and discuss some of its mathematical properties.<br />
<br />
=== George Craciun===<br />
''Proofs without words (but with plenty of pictures)''<br />
<br />
We will discuss mathematical proofs that can be done using only pictures or figures. If you want to see many such examples you can check out the book "Proofs without Words: Exercises in Visual Thinking" by Roger B. Nelsen. For more information also look at the wikipedia page http://en.wikipedia.org/wiki/Proof_without_words , where you can find links to Java Applets that show animations of proofs without words, such as http://usamts.org/Gallery/G_Gallery.php .<br />
<br />
<br />
=== Daniel Hast===<br />
''Clock arithmetic and perfect squares: a "Golden Theorem" of reciprocity''<br />
<br />
We'll explore systems of arithmetic where numbers loop back around to zero (like the hours on a clock!), called "modular arithmetic". Which numbers are perfect squares in such systems? Gauss, one of the greatest mathematicians in history, called the remarkable answer the "golden theorem".<br />
<br />
=== Alisha Zachariah===<br />
''What is infinity anyway''<br />
<br />
Infinity has a long history of having confounded and fascinated thinkers. We will take a look at some fundamental problems that early mathematicians grappled with and see some ways to understand infinity that have contributed to how we do math today.<br />
<br />
===Marko Budisic===<br />
''Mathematics of epidemics''<br />
<br />
Infectious diseases in our communities often make it into daily conversation: "There's a nasty cold going around.", "It's the flu season, get your shots.", and even, "There are news of a zombie outbreak!" Come hear how math gets applied to something as messy as spread of disease. We will use our wits, pencils, and computers to understand the progress of headaches, common cold, zombie outbreaks, and even ebola, a disease that is currently making the news. <br />
<br />
==[[Archived Math Circle Material]]==<br />
[[Archived Math Circle Material]]<br />
<br />
=Link for presenters (in progress)=<br />
[[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=8485Applied/Physical Applied Math2014-10-02T15:47:22Z<p>Marko: /* Fall 2014 */</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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Fall 2014 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|Sept 11<br />
|Saverio Spagnolie<br />
|Takagi et al., [http://pubs.rsc.org/en/content/articlelanding/2014/sm/c3sm52815d#!divAbstract Hydrodynamic capture of microswimmers into sphere-bound orbits], Soft Matter, (2014).<br />
|-<br />
|Sept 18<br />
|Faculty meeting<br />
|<br />
|-<br />
|Sept 25<br />
|Will Mitchell<br />
|Berman and Mitchell, [http://www.math.wisc.edu/~whmitchell/SparseLineDeletion.pdf Sparse line deletion constructions for symmetric 4-configurations], Ars Mathematica Contemporanea, (2015).<br />
|-<br />
|Oct 2<br />
|Erik Bollt<br />
|Frobenius-Perron - How to Follow Million Orbits all at Once<br />
|-<br />
|Oct 9<br />
|Marko Budisic<br />
|Numeric computation of Lagrangian Coherent Structures (following [http://arxiv.org/abs/1405.4727 Karrasch, Farrazmand, Haller] )<br />
|-<br />
|Oct 16<br />
|Peter Mueller<br />
|TBA<br />
|-<br />
|Oct 23<br />
|Faculty meeting<br />
|-<br />
|Oct 30<br />
|TBD<br />
|TBA<br />
|-<br />
|Nov 6<br />
|Jean-Luc Thiffeault<br />
|TBA<br />
|-<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=8484Applied/Physical Applied Math2014-10-02T15:46:51Z<p>Marko: /* Fall 2014 */</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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Fall 2014 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|Sept 11<br />
|Saverio Spagnolie<br />
|Takagi et al., [http://pubs.rsc.org/en/content/articlelanding/2014/sm/c3sm52815d#!divAbstract Hydrodynamic capture of microswimmers into sphere-bound orbits], Soft Matter, (2014).<br />
|-<br />
|Sept 18<br />
|Faculty meeting<br />
|<br />
|-<br />
|Sept 25<br />
|Will Mitchell<br />
|Berman and Mitchell, [http://www.math.wisc.edu/~whmitchell/SparseLineDeletion.pdf Sparse line deletion constructions for symmetric 4-configurations], Ars Mathematica Contemporanea, (2015).<br />
|-<br />
|Oct 2<br />
|Erik Bollt<br />
|Frobenius-Perron - How to Follow Million Orbits all at Once<br />
|-<br />
|Oct 9<br />
|Marko Budisic<br />
|Geodesic computation of Lagrangian Coherent Structures (following [http://arxiv.org/abs/1405.4727 Karrasch, Farrazmand, Haller] )<br />
|-<br />
|Oct 16<br />
|Peter Mueller<br />
|TBA<br />
|-<br />
|Oct 23<br />
|Faculty meeting<br />
|-<br />
|Oct 30<br />
|TBD<br />
|TBA<br />
|-<br />
|Nov 6<br />
|Jean-Luc Thiffeault<br />
|TBA<br />
|-<br />
|}<br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=7902Applied/ACMS2014-08-08T20:46:47Z<p>Marko: /* Fall 2014 Semester */</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://lists.math.wisc.edu/listinfo/acms mailing list] website.<br />
<br />
<br><br />
<br />
== Fall 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sept. 12<br />
|[http://agis.athanassoulis.net/ Agisilaos Athanasoulis] (Leicester)<br />
|''[[Applied/ACMS/absF14#Agisilaos Athanasoulis (Leicester)|TBA]]''<br />
|Shi Jin<br />
|-<br />
|Sept. 19<br />
|[http://www.sci.utah.edu/~dxiu/ Dongbin Xiu] (Utah)<br />
|''[[Applied/ACMS/absF14#Dongbin Xiu (Utah)|TBA]]''<br />
|Shi Jin<br />
|-<br />
|Sept. 26<br />
|[http://home.physics.wisc.edu/~boldyrev/ Stanislav Boldyrev] (UW)<br />
|''[[Applied/ACMS/absF14#Stanislav Boldyrev (UW)|TBA]]''<br />
|Saverio and David<br />
|-<br />
|Oct. 3<br />
|[http://people.clarkson.edu/~ebollt/ Erik Bollt] (Clarkson)<br />
|''[[Applied/ACMS/absF14#Erik Bollt (Clarkson)|TBA]]''<br />
|Jean-Luc<br />
|-<br />
|Oct. 10<br />
|[http://www.math.unm.edu/~motamed/ Mohammad Motamed] (New Mexico)<br />
|''[[Applied/ACMS/absF14#Mohammad Motamed (New Mexico)|TBA]]''<br />
|Shi Jin<br />
|-<br />
|Oct. 17<br />
|<br />
|''[[Applied/ACMS/absF14#|TBA]]''<br />
|<br />
|-<br />
|Oct. 24<br />
|<br />
|''[[Applied/ACMS/absF14#|(HG)]]''<br />
|-<br />
|Oct. 31<br />
|<br />
|''[[Applied/ACMS/absF14#|TBA]]''<br />
|-<br />
|Nov. 7<br />
|[http://tchumley.public.iastate.edu/ Tim Chumley] (Iowa State)<br />
|''[[Applied/ACMS/absF14#Tim Chumley (Iowa State)|TBA]]''<br />
|Saverio<br />
|-<br />
|Nov. 14<br />
|[http://www.math.wisc.edu/~sondak/ David Sondak] (UW)<br />
|''[[Applied/ACMS/absF14# David Sondak|TBA]]''<br />
|Saverio<br />
|-<br />
|Nov. 21<br />
|[http://people.esam.northwestern.edu/~silber/ Mary Silber] (Northwestern)<br />
|''[[Applied/ACMS/absF14#|TBA]]''<br />
|Saverio, Marko<br />
|-<br />
|Nov. 28<br />
|Thanksgiving recess<br />
|<br />
|-<br />
|Dec. 5<br />
|[http://physics.nyu.edu/~jz11/ Jun Zhang] (NYU)<br />
|''[[Applied/ACMS/absF14#Jun Zhang (NYU)|TBA]]''<br />
|Saverio<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<br />
*[[Applied/ACMS/Spring2015|Spring 2015]]<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=7047Applied/Physical Applied Math2014-06-12T14:31:31Z<p>Marko: /* Summer 2014 Semester */</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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Summer 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|May 29<br />
|Jean-Luc Thiffeault<br />
|Parra-Rojas & Soto, [http://arxiv.org/abs/1404.4857v1 Casimir effect in swimmer suspensions].<br />
|-<br />
|June 5<br />
|Saverio Spagnolie<br />
|Khair & Squires, [http://prl.aps.org/abstract/PRL/v105/i15/e156001 Active microrheology: a proposed technique to measure normal stress coefficients of complex fluids] Phys. Rev. Lett. (2010).<br />
|-<br />
|June 12<br />
|Will Mitchell<br />
|-<br />
|June 19<br />
|Marko Budisic<br />
|Shuckburgh, E. and Haynes, P. [http://dx.doi.org/10.1063/1.1610471 Diagnosing transport and mixing using a tracer-based coordinate system] Phys. Fluids (2003)<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=7046Applied/Physical Applied Math2014-06-12T14:30:26Z<p>Marko: /* Summer 2014 Semester */</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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Summer 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|May 29<br />
|Jean-Luc Thiffeault<br />
|Parra-Rojas & Soto, [http://arxiv.org/abs/1404.4857v1 Casimir effect in swimmer suspensions].<br />
|-<br />
|June 5<br />
|Saverio Spagnolie<br />
|Khair & Squires, [http://prl.aps.org/abstract/PRL/v105/i15/e156001 Active microrheology: a proposed technique to measure normal stress coefficients of complex fluids] Phys. Rev. Lett. (2010).<br />
|-<br />
|June 12<br />
|Will Mitchell<br />
|-<br />
|June 19<br />
|Marko Budisic<br />
|Shuckburgh, E. and Haynes, P. [http://dx.doi.org/10.1063/1.1610471 Diagnosing transport and mixing using a tracer-based coordinate system]<br />
|}<br />
<br />
<br><br />
<br />
== Archived semesters ==<br />
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]<br />
<br />
<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=6759Applied/Physical Applied Math2014-03-06T23:39:29Z<p>Marko: /* Spring 2014 Semester */</p>
<hr />
<div>= Physical Applied Math Journal Club =<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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|Jan 30 <br />
|Peter Mueller<br />
|Roenby & Aref, [http://scitation.aip.org/content/aip/journal/pof2/22/5/10.1063/1.3406960 On the atmosphere of a moving body], Phys. Fluids (2010)<br />
|-<br />
|Feb 13 <br />
|Will Mitchell<br />
|Keaveny & Shelley, [http://www.sciencedirect.com/science/article/pii/S0021999110006741 Applying a second-kind boundary integral equation for surface tractions in Stokes flow], J. Comput. Phys. (2011)<br />
|-<br />
|Feb 20<br />
|Saverio<br />
|Stone & Samuel, [http://prl.aps.org/abstract/PRL/v77/i19/p4102_1 Propulsion of Microorganisms by Surface Distortions] (1996) and Khair & Squires, [http://prl.aps.org/abstract/PRL/v105/i15/e156001 Active Microrheology...] (2010)<br />
|-<br />
|Feb 27<br />
|Jim Brunner<br />
|Craciun, Nazarov & Pantea, [http://www.math.wisc.edu/~craciun/PAPERS/Craciun_Nazarov_Pantea_PERSISTENCE_PERMANENCE.pdf Persistence and permanence of mass-action and power-law dynamical systems], SIAM J. Appl. Math. (2013)<br />
|<br />
|-<br />
|Mar 6<br />
|Marko Budisic<br />
|Spectral graph theory ([http://mbudisic.wordpress.com/2014/03/06/basics-of-spectral-graph-theory/ link to notes and reading list])<br />
|<br />
|-<br />
|Mar 13<br />
|''faculty meeting''<br />
|<br />
|<br />
|-<br />
|Mar 20<br />
|''Spring Break''<br />
|<br />
|<br />
|-<br />
|Mar 27 <br />
|Tadashi Tokieda<br />
|TBA<br />
|-<br />
|Apr 3 <br />
|<br />
|TBA<br />
|}<br />
<br />
<br><br />
<br />
----</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=6746Applied/Physical Applied Math2014-03-03T21:12:32Z<p>Marko: /* Spring 2014 Semester */</p>
<hr />
<div>= Physical Applied Math Journal Club =<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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|Jan 30 <br />
|Peter Mueller<br />
|Roenby & Aref, [http://scitation.aip.org/content/aip/journal/pof2/22/5/10.1063/1.3406960 On the atmosphere of a moving body], Phys. Fluids (2010)<br />
|-<br />
|Feb 13 <br />
|Will Mitchell<br />
|Keaveny & Shelley, [http://www.sciencedirect.com/science/article/pii/S0021999110006741 Applying a second-kind boundary integral equation for surface tractions in Stokes flow], J. Comput. Phys. (2011)<br />
|-<br />
|Feb 20<br />
|Saverio<br />
|Stone & Samuel, [http://prl.aps.org/abstract/PRL/v77/i19/p4102_1 Propulsion of Microorganisms by Surface Distortions] (1996) and Khair & Squires, [http://prl.aps.org/abstract/PRL/v105/i15/e156001 Active Microrheology...] (2010)<br />
|-<br />
|Feb 27<br />
|Jim Brunner<br />
|Craciun, Nazarov & Pantea, [http://www.math.wisc.edu/~craciun/PAPERS/Craciun_Nazarov_Pantea_PERSISTENCE_PERMANENCE.pdf Persistence and permanence of mass-action and power-law dynamical systems], SIAM J. Appl. Math. (2013)<br />
|<br />
|-<br />
|Mar 6<br />
|Marko Budisic<br />
|Topics from Mohar, B. (1997). [http://www.fmf.uni-lj.si/~mohar/Papers/Montreal.pdf Some applications of Laplace eigenvalues of graphs.] In Graph symmetry (Montreal, PQ, 1996) (Vol. 497, pp. 225–275). <br />
|<br />
|-<br />
|Mar 13<br />
|''faculty meeting''<br />
|<br />
|<br />
|-<br />
|Mar 20<br />
|''Spring Break''<br />
|<br />
|<br />
|-<br />
|Mar 27 <br />
|Tadashi Tokieda<br />
|TBA<br />
|-<br />
|Apr 3 <br />
|<br />
|TBA<br />
|}<br />
<br />
<br><br />
<br />
----</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/Physical_Applied_Math&diff=6745Applied/Physical Applied Math2014-03-03T21:09:08Z<p>Marko: /* Spring 2014 Semester */</p>
<hr />
<div>= Physical Applied Math Journal Club =<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://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].<br />
<br />
<br><br />
<br />
== Spring 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title/paper<br />
|-<br />
|Jan 30 <br />
|Peter Mueller<br />
|Roenby & Aref, [http://scitation.aip.org/content/aip/journal/pof2/22/5/10.1063/1.3406960 On the atmosphere of a moving body], Phys. Fluids (2010)<br />
|-<br />
|Feb 13 <br />
|Will Mitchell<br />
|Keaveny & Shelley, [http://www.sciencedirect.com/science/article/pii/S0021999110006741 Applying a second-kind boundary integral equation for surface tractions in Stokes flow], J. Comput. Phys. (2011)<br />
|-<br />
|Feb 20<br />
|Saverio<br />
|Stone & Samuel, [http://prl.aps.org/abstract/PRL/v77/i19/p4102_1 Propulsion of Microorganisms by Surface Distortions] (1996) and Khair & Squires, [http://prl.aps.org/abstract/PRL/v105/i15/e156001 Active Microrheology...] (2010)<br />
|-<br />
|Feb 27<br />
|Jim Brunner<br />
|Craciun, Nazarov & Pantea, [http://www.math.wisc.edu/~craciun/PAPERS/Craciun_Nazarov_Pantea_PERSISTENCE_PERMANENCE.pdf Persistence and permanence of mass-action and power-law dynamical systems], SIAM J. Appl. Math. (2013)<br />
|<br />
|-<br />
|Mar 6<br />
|Marko Budisic: Laplacian of a graph<br />
| This is a broad subject and even review articles are often too big for our seminar. I will cover topics from<br />
|Mohar, B. (1997). Some applications of Laplace eigenvalues of graphs. In Graph symmetry (Montreal, PQ, 1996) (Vol. 497, pp. 225–275). Dordrecht: Kluwer Acad. Publ. Retrieved from www.fmf.uni-lj.si/~mohar/Papers/Montreal.pdf<br />
| with perhaps some extra information from other sources.<br />
|<br />
|-<br />
|Mar 13<br />
|''faculty meeting''<br />
|<br />
|<br />
|-<br />
|Mar 20<br />
|''Spring Break''<br />
|<br />
|<br />
|-<br />
|Mar 27 <br />
|Tadashi Tokieda<br />
|TBA<br />
|-<br />
|Apr 3 <br />
|<br />
|TBA<br />
|}<br />
<br />
<br><br />
<br />
----</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=6206Applied2013-10-30T16:32:59Z<p>Marko: /* 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 />
= '''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 />
* '''Qin Li''' (student of Shi Jin) graduated in Summer 2013. She was awarded an ''Excellence in Research'' award by the math department and has accepted a von Karman Instructor position at Caltech. <!-- Added by jeanluc 2013-06-11 --><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].<br />
<br />
* '''Sarah Tumasz''' (student of Jean-Luc Thiffeault) was awarded the 2012/13 John Nohel Prize in Applied Mathematics for her thesis, "Topological stirring."<br />
<br />
* '''Qiang Deng''' (student of Leslie Smith) graduated in Summer 2012 and has a postdoc at Courant Abu-Dhabi starting Sept 2012.<br />
<br />
* '''Hesam Dashti''' (student of Amir Assadi) received an MSc in Computational Mathematics in May 2012 and continues his PhD in Biophysics at UW Madison. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Anakewit (Tete) Boonkasame''' (Ph.D. student of Paul Milewski) graduated in Summer 2012, and is now a postdoc with Leslie Smith and Fabian Waleffe. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Zhan Wang''' (Ph.D. student of Paul Milewski) graduated in Summer 2012, and is now a postdoc with Jean-Marc Vanden-Broeck at UCL. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Peng Qi''' (Ph.D. student of Shi Jin) graduated in Summer 2012 and took a Quantitative Associate position at Wells Fargo Bank in California. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Li (Aug) Wang''' (Ph.D. student of Shi Jin) graduated in Summer 2012 and is now an postdoctoral Assistant Professor at University of Michigan-Ann Arbor. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* Research Projects in High Performance Computation and BIGDATA resources are available for graduate students taking courses or participating in [http://vv811a.math.wisc.edu/persepolis/index.php/hpc Persepolis research projects]. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* Funding opportunity for a '''postdoctoral researcher''' in the area of '''stochastic and statistical modeling of climate''' (contact [http://www.math.wisc.edu/~stechmann/ Sam Stechmann], supported by [http://www.onr.navy.mil/ ONR], apply at [http://www.mathjobs.org/jobs/jobs/3803 mathjobs.org]). <!-- Added by stechmann 2012-07-24 --><br />
<br />
* '''[http://www.math.msu.edu/~seal/ David Seal]''' (Ph.D. student with James Rossmanith) graduated in 2012 and is now a post-doc at [http://www.math.msu.edu/ Michigan State University]. <!-- Added by rossmani 2012-06-14 --><br />
<br />
* '''E. Alec Johnson''' (Ph.D. student with James Rossmanith) graduated and is now a post-doc at the [http://wis.kuleuven.be/cpa/index.php Centre for Plasma Astrophysics (KU-Leuven)]. <!-- Added by rossmani 2012-06-14 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study dynamics of large-scale molecular systems, such as cell membranes (contact [http://www.math.wisc.edu/~mitchell Julie Mitchell], supported by [http://nsf.gov NSF]). <!-- Added by mitchell 2012-06-11 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study mathematics of fluids - regularity and mixing, more for information check http://www.math.wisc.edu/~kiselev/graduate.html (contact [http://www.math.wisc.edu/~kiselev Sasha Kiselev], supported by [http://nsf.gov NSF]). <!-- Added by kiselev 2012-04-19 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study chemotaxis and applications in mathematical biology, more for information check http://www.math.wisc.edu/~kiselev/graduate.html (contact [http://www.math.wisc.edu/~kiselev Sasha Kiselev], supported by [http://nsf.gov NSF]). <!-- Added by kiselev 2012-04-19 --><br />
<br />
* '''[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie]''' has accepted a position as a tenure-track assistant professor in our department. Saverio will join us this Fall. Welcome to the group, Saverio! <!-- Added by jeanluc 2012-03-15 --><br />
<br />
* '''Bokai Yan''' (PhD student with Shi Jin) graduated in Fall 2011 and is now a postdoc at UCLA. <!-- Added by jeanluc 2012-02-05 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''persistence and multistability in biological networks''' (contact [http://www.math.wisc.edu/~craciun Gheorghe Craciun], supported by [http://nih.gov NIH]). <!-- Added by craciun 2011-09-01 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''mathematical analysis of mass spectrometry data and proteomics''' (contact [http://www.math.wisc.edu/~craciun Gheorghe Craciun], supported by [http://nsf.gov NSF]). <!-- Added by craciun 2011-09-01 --><br />
<br />
* '''Li Wang''' (PhD student with Leslie Smith) graduated and has a job at [http://www.epic.com/ Epic]. <!-- Added by jeanluc 2011-09-01 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''waves in geophysical flows and tropical cyclogenesis''' (contact [http://www.math.wisc.edu/~lsmith Leslie Smith], supported by [http://nsf.gov NSF]). <!-- Added by jeanluc 2011-09-01 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''nonlinear critical layers and exact coherent states in turbulent shear flows''' (contact [http://www.math.wisc.edu/~waleffe Fabian Waleffe], supported by [http://nsf.gov NSF]). <!-- Added by Wally 2011-09-02 --><br />
<br />
<br><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 GPS Applied Math Seminar] (Fridays at 9:00am, 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://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://www.cs.wisc.edu/category/event-types/wid-dow-presentation-series 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.engr.wisc.edu/news/events/index.phtml?start=2011-09-02&range=3650&search=Rheology RRC Lecture] (Fridays at 12:05pm, 1800 Engineering Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
<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/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis<br />
and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.<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, 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/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials<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/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<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/~blackman/ Claire Blackman:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie.<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/~jefferis/ Leland Jefferis:] Student of Shi Jin.<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 />
[http://www.math.wisc.edu/~leili/ Lei Li:] 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/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.<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 />
Yun Sun: Student of Shi Jin.<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 />
[http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.<br />
<br />
<!-- Past students: --><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 />
<!--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 />
<!--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 />
<br />
<br><br />
<br />
== Graduate course offerings ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied&diff=6205Applied2013-10-30T16:32:08Z<p>Marko: /* 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 />
= '''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 />
* '''Qin Li''' (student of Shi Jin) graduated in Summer 2013. She was awarded an ''Excellence in Research'' award by the math department and has accepted a von Karman Instructor position at Caltech. <!-- Added by jeanluc 2013-06-11 --><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].<br />
<br />
* '''Sarah Tumasz''' (student of Jean-Luc Thiffeault) was awarded the 2012/13 John Nohel Prize in Applied Mathematics for her thesis, "Topological stirring."<br />
<br />
* '''Qiang Deng''' (student of Leslie Smith) graduated in Summer 2012 and has a postdoc at Courant Abu-Dhabi starting Sept 2012.<br />
<br />
* '''Hesam Dashti''' (student of Amir Assadi) received an MSc in Computational Mathematics in May 2012 and continues his PhD in Biophysics at UW Madison. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Anakewit (Tete) Boonkasame''' (Ph.D. student of Paul Milewski) graduated in Summer 2012, and is now a postdoc with Leslie Smith and Fabian Waleffe. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Zhan Wang''' (Ph.D. student of Paul Milewski) graduated in Summer 2012, and is now a postdoc with Jean-Marc Vanden-Broeck at UCL. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Peng Qi''' (Ph.D. student of Shi Jin) graduated in Summer 2012 and took a Quantitative Associate position at Wells Fargo Bank in California. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* '''Li (Aug) Wang''' (Ph.D. student of Shi Jin) graduated in Summer 2012 and is now an postdoctoral Assistant Professor at University of Michigan-Ann Arbor. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* Research Projects in High Performance Computation and BIGDATA resources are available for graduate students taking courses or participating in [http://vv811a.math.wisc.edu/persepolis/index.php/hpc Persepolis research projects]. <!-- Added by jeanluc 2012-08-09 --><br />
<br />
* Funding opportunity for a '''postdoctoral researcher''' in the area of '''stochastic and statistical modeling of climate''' (contact [http://www.math.wisc.edu/~stechmann/ Sam Stechmann], supported by [http://www.onr.navy.mil/ ONR], apply at [http://www.mathjobs.org/jobs/jobs/3803 mathjobs.org]). <!-- Added by stechmann 2012-07-24 --><br />
<br />
* '''[http://www.math.msu.edu/~seal/ David Seal]''' (Ph.D. student with James Rossmanith) graduated in 2012 and is now a post-doc at [http://www.math.msu.edu/ Michigan State University]. <!-- Added by rossmani 2012-06-14 --><br />
<br />
* '''E. Alec Johnson''' (Ph.D. student with James Rossmanith) graduated and is now a post-doc at the [http://wis.kuleuven.be/cpa/index.php Centre for Plasma Astrophysics (KU-Leuven)]. <!-- Added by rossmani 2012-06-14 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study dynamics of large-scale molecular systems, such as cell membranes (contact [http://www.math.wisc.edu/~mitchell Julie Mitchell], supported by [http://nsf.gov NSF]). <!-- Added by mitchell 2012-06-11 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study mathematics of fluids - regularity and mixing, more for information check http://www.math.wisc.edu/~kiselev/graduate.html (contact [http://www.math.wisc.edu/~kiselev Sasha Kiselev], supported by [http://nsf.gov NSF]). <!-- Added by kiselev 2012-04-19 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study chemotaxis and applications in mathematical biology, more for information check http://www.math.wisc.edu/~kiselev/graduate.html (contact [http://www.math.wisc.edu/~kiselev Sasha Kiselev], supported by [http://nsf.gov NSF]). <!-- Added by kiselev 2012-04-19 --><br />
<br />
* '''[http://www.math.wisc.edu/~spagnolie/ Saverio Spagnolie]''' has accepted a position as a tenure-track assistant professor in our department. Saverio will join us this Fall. Welcome to the group, Saverio! <!-- Added by jeanluc 2012-03-15 --><br />
<br />
* '''Bokai Yan''' (PhD student with Shi Jin) graduated in Fall 2011 and is now a postdoc at UCLA. <!-- Added by jeanluc 2012-02-05 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''persistence and multistability in biological networks''' (contact [http://www.math.wisc.edu/~craciun Gheorghe Craciun], supported by [http://nih.gov NIH]). <!-- Added by craciun 2011-09-01 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''mathematical analysis of mass spectrometry data and proteomics''' (contact [http://www.math.wisc.edu/~craciun Gheorghe Craciun], supported by [http://nsf.gov NSF]). <!-- Added by craciun 2011-09-01 --><br />
<br />
* '''Li Wang''' (PhD student with Leslie Smith) graduated and has a job at [http://www.epic.com/ Epic]. <!-- Added by jeanluc 2011-09-01 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''waves in geophysical flows and tropical cyclogenesis''' (contact [http://www.math.wisc.edu/~lsmith Leslie Smith], supported by [http://nsf.gov NSF]). <!-- Added by jeanluc 2011-09-01 --><br />
<br />
* Funding opportunity for a '''graduate student''' to study '''nonlinear critical layers and exact coherent states in turbulent shear flows''' (contact [http://www.math.wisc.edu/~waleffe Fabian Waleffe], supported by [http://nsf.gov NSF]). <!-- Added by Wally 2011-09-02 --><br />
<br />
<br><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 GPS Applied Math Seminar] (Fridays at 9:00am, 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://silo.ece.wisc.edu/web/content/seminars SILO Seminar] (Wednesdays at 12:30pm, 3rd floor WID)<br />
* [http://www.cs.wisc.edu/category/event-types/wid-dow-presentation-series 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.engr.wisc.edu/news/events/index.phtml?start=2011-09-02&range=3650&search=Rheology RRC Lecture] (Fridays at 12:05pm, 1800 Engineering Hall)<br />
* [http://www.physics.wisc.edu/twap/view.php?name=PDC Physics Department Colloquium] (Fridays at 3:30 pm; 2241 Chamberlin Hall)<br />
<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/~kiselev/ Alex (Sasha) Kiselev:] (CalTech, 1997) partial differential equations, Fourier analysis<br />
and applications in fluid mechanics, combustion, mathematical biology and Schr&ouml;dinger operators.<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, 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/~zlatos/ Andrej Zlatos:] (Caltech, 2003) partial differential equations, combustion, fluid dynamics, Schrödinger operators, orthogonal polynomials<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)<br />
<br />
[http://www.math.wisc.edu/~caiy Yongyong Cai:] (National University of Singapore, 2012)<br />
<br />
[http://www.math.wisc.edu/~hernande Gerardo Hernandez-Duenas:] (Michigan, 2011) geophysical fluid dynamics<br />
<br />
[http://www.math.wisc.edu/~mjohnston3 Matthew Johnston:]<br />
(University of Waterloo, 2011) dynamical systems<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/~blackman/ Claire Blackman:] Student of Jean-Luc Thiffeault.<br />
<br />
[http://www.math.wisc.edu/~crompton/ Bryan Crompton:] Student of Saverio Spagnolie.<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/~jefferis/ Leland Jefferis:] Student of Shi Jin.<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 />
[http://www.math.wisc.edu/~leili/ Lei Li:] 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/~mueller/ Peter Mueller:] Student of Jean-Luc Thiffeault.<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 />
Yun Sun: Student of Shi Jin.<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 />
[http://www.math.wisc.edu/~zhou/ Zhennan Zhou:] Student of Shi Jin.<br />
<br />
<!-- Past students: --><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 />
<!--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 />
<!--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 />
<br />
<br><br />
<br />
== Graduate course offerings ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=6204Applied/ACMS2013-10-30T16:18:17Z<p>Marko: /* Spring 2014 Semester */</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://lists.math.wisc.edu/listinfo/acms mailing list] website.<br />
<br />
<br><br />
<br />
== Fall 2013 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|'''Aug 27, 3pm'''<br />
|[http://www1.maths.leeds.ac.uk/~rsturman/ Rob Sturman] (Leeds)<br />
|''[[Applied/ACMS/absF13#Rob_Sturman|Lecture 1: The ergodic hierarchy & uniform hyperbolicity]]''<br />
|Jean-Luc<br />
|-<br />
|'''Aug 29, 3pm'''<br />
|[http://www1.maths.leeds.ac.uk/~rsturman/ Rob Sturman] (Leeds)<br />
|''[[Applied/ACMS/absF13#Rob_Sturman|Lecture 2: Non-uniform hyperbolicity & Pesin theory]]''<br />
|Jean-Luc<br />
|-<br />
|Aug 30<br />
|[http://www1.maths.leeds.ac.uk/~rsturman/ Rob Sturman] (Leeds)<br />
|''[[Applied/ACMS/absF13#Rob_Sturman|Seminar: Rates of mixing in models of fluid flow]]''<br />
|Jean-Luc<br />
|-<br />
|Sept 13<br />
|[http://www.unc.edu/~ogrosky/ Reed Ogrosky] (UW)<br />
|''[[Applied/ACMS/absF13#Reed_Ogrosky|Long-wave modeling of a viscous liquid film inside a vertical tube]]''<br />
|Saverio<br />
|-<br />
|'''Sept 18, 2:25pm, 901'''<br />
|[http://aeinav.wordpress.com/ Amit Einav] (Cambridge)<br />
|''[[Applied/ACMS/absF13#Amit_Einav|The entropy method in the Kac model and its relation to the Boltzmann equation]]''<br />
|Shi Jin<br />
|-<br />
|Sept 20<br />
|[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich] (UW)<br />
|''[[Applied/ACMS/absF13#Shamgar Gurevich_(UW)|The incidence and cross methods for efficient radar detection]]''<br />
|Jean-Luc, Saverio<br />
|-<br />
|Sept 27<br />
|[http://geoscience.wisc.edu/geoscience/people/faculty/michael-cardiff/ Michael Cardiff] (UW)<br />
|''[[Applied/ACMS/absF13#Michael_Cardiff_(UW)|The hydrogeologic inverse problem: characterizing aquifer heterogeneity with multi-frequency stimulations]]''<br />
|Saverio<br />
|-<br />
|Oct 4<br />
|Ronen Avni (Technion)<br />
|''[[Applied/ACMS/absF13#Ronen_Avni_(Technion)|Mathematical model for cell motility driven by active gel]]''<br />
|Saverio<br />
|-<br />
|Oct 18<br />
|[http://www.unc.edu/~khatri/ Shilpa Khatri] (UNC)<br />
|''[[Applied/ACMS/absF13#Shilpa_Khatri_(UNC)|Settling and rising in stratified fluids: fluid-structure interactions and multiphase flow]]''<br />
|Stechmann, Saverio<br />
|-<br />
|'''Wed, Oct 23'''<br />
|Junping Wang (National Science Foundation)<br />
|''[[Applied/ACMS/absF13#Junping_Wang|Weak Galerkin Finite Element Methods for PDEs]]''<br />
|Shi Jin<br />
|-<br />
|Oct 25<br />
|Douglas Zhou (Shanghai Jiao Tong)<br />
|''[[Applied/ACMS/absF13#Douglas_Zhou|Causal and structural connectivity of neuronal networks]]''<br />
|Shi Jin<br />
|-<br />
|Nov 1<br />
|[http://web.anl.gov/biomaterials/researchers/igor-aronson.html Igor Aronson] (Argonne)<br />
|''[[Applied/ACMS/absF13#Igor_Aronson_(Argonne)|Living liquid crystals]]''<br />
|Saverio<br />
|-<br />
|Nov 8<br />
|[http://www.math.ucsd.edu/~bli/ Bo Li] (UCSD)<br />
|''[[Applied/ACMS/absF13#Bo_Li_(UCSD)|Variational implicit solvation of biomolecules]]''<br />
|Shi Jin<br />
|-<br />
|'''Wed, Nov 13'''<br />
|[http://users.ices.utexas.edu/~hu/Site/Home.html Jingwei Hu] (Texas)<br />
|''[[Applied/ACMS/absF13#Jingwei_Hu_(Texas)|TBA]]''<br />
|Shi Jin<br />
|-<br />
|Nov 15<br />
|[http://mbudisic.wordpress.com/ Marko Budisic] (UW)<br />
|''[[Applied/ACMS/absF13#Marko_Budisic_(UW)|Visualizing invariant structures of dynamical systems using the ergodic quotient]]''<br />
|Jean-Luc<br />
|-<br />
|Nov 22<br />
|[http://www.math.umn.edu/~ymori/ Yoichiro Mori] (Minnesota)<br />
|''[[Applied/ACMS/absF13#Yoichiro_Mori_(Minnesota)|TBA]]''<br />
|Saverio<br />
|-<br />
|'''Thurs, Dec 5'''<br />
|[https://sites.google.com/site/cgkoay/pr Cheng Koay] (UW) [joint with applied algebra]<br />
|''[[Applied/ACMS/absF13#Cheng_Koay_(UW)|Symmetry and uniformity considerations in Magnetic Resonance Imaging acquisitions]]''<br />
|Julie<br />
|-<br />
|Dec 13<br />
|TBA<br />
|''[[Applied/ACMS/absF13#|TBA]]''<br />
|<br />
|-<br />
|<br />
|}<br />
<br />
== Spring 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Jan 31<br />
|[http://scholar.google.com/scholar?hl=en&as_sdt=0,50&q=harvey+segur Harvey Segur] (Colorado)<br />
|''[[Applied/ACMS/absS14#Harvey_Segur_(Colorado)|TBA]]''<br />
|Saverio<br />
|-<br />
|Feb 7<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Feb 14<br />
|[http://www.astro.wisc.edu/our-people/faculty/donghia-elena/ Elena D'Onghia] (UW)<br />
|''[[Applied/ACMS/absS14#Elena_DOnghia_(UW)|TBA]]''<br />
|Saverio<br />
|-<br />
|'''Feb 21, 4pm, B239'''<br />
|[http://math.nyu.edu/faculty/shelley/ Michael Shelley] (Courant)<br />
|''[[Applied/ACMS/absS14#Michael_Shelley_(Courant)|TBA]]''<br />
|'''Colloquium'''<br />
|-<br />
|Feb 28<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Mar 7<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Mar 14<br />
|[http://www.mcs.anl.gov/~wild/ Stefan Wild] (Argonne)<br />
|''[[Applied/ACMS/absS14#Stefan_Wild_(Argonne)|TBA]]''<br />
|Saverio<br />
|-<br />
|Mar 28<br />
|[http://www.math.canterbury.ac.nz/~m.steel/ Mike Steel] (University of Canterbury)<br />
|''[[Applied/ACMS/absS14#Mike_Steel|TBA]]''<br />
|Sebastien<br />
|-<br />
|Apr 4<br />
|[https://directory.engr.wisc.edu/ie/faculty/mclay_laura/ Laura McLay] (UW)<br />
|''[[Applied/ACMS/absS14#Laura_McLay_(UW)|TBA]]''<br />
|Julie<br />
|-<br />
|Apr 11<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Apr 18<br />
|[http://www.nwra.com/resumes/lelong/ Marie-Pascale Lelong] (NorthWest Research Associates)<br />
|''[[Applied/ACMS/absS14#Marie_Pascale_Lelong|TBA]]''<br />
|Leslie<br />
|-<br />
|Apr 25<br />
|[http://math.berkeley.edu/~wilken/ Jon Wilkening] (UC Berkeley)<br />
|''[[Applied/ACMS/absS14#Jon_Wilkening_(UC_Berkeley)|TBA]]''<br />
|Saverio<br />
|-<br />
|May 2<br />
|[http://www.math.utah.edu/~choheneg/ Christel Hohenegger] (Utah)<br />
|''[[Applied/ACMS/absS14#Christel_Hohenegger_(Utah)|TBA]]''<br />
|Saverio<br />
|-<br />
|May 9<br />
|[http://amath.colorado.edu/faculty/jdm/index.html Jim Meiss] (Colorado) <br />
|''[[Applied/ACMS/absS14#Jim_Meiss_(Colorado)|TBA]]''<br />
|Saverio<br />
|}<br />
<br />
<br />
<br><br />
<br />
== Archived semesters ==<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>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS&diff=6203Applied/ACMS2013-10-30T16:16:40Z<p>Marko: /* Fall 2013 Semester */</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://lists.math.wisc.edu/listinfo/acms mailing list] website.<br />
<br />
<br><br />
<br />
== Fall 2013 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|'''Aug 27, 3pm'''<br />
|[http://www1.maths.leeds.ac.uk/~rsturman/ Rob Sturman] (Leeds)<br />
|''[[Applied/ACMS/absF13#Rob_Sturman|Lecture 1: The ergodic hierarchy & uniform hyperbolicity]]''<br />
|Jean-Luc<br />
|-<br />
|'''Aug 29, 3pm'''<br />
|[http://www1.maths.leeds.ac.uk/~rsturman/ Rob Sturman] (Leeds)<br />
|''[[Applied/ACMS/absF13#Rob_Sturman|Lecture 2: Non-uniform hyperbolicity & Pesin theory]]''<br />
|Jean-Luc<br />
|-<br />
|Aug 30<br />
|[http://www1.maths.leeds.ac.uk/~rsturman/ Rob Sturman] (Leeds)<br />
|''[[Applied/ACMS/absF13#Rob_Sturman|Seminar: Rates of mixing in models of fluid flow]]''<br />
|Jean-Luc<br />
|-<br />
|Sept 13<br />
|[http://www.unc.edu/~ogrosky/ Reed Ogrosky] (UW)<br />
|''[[Applied/ACMS/absF13#Reed_Ogrosky|Long-wave modeling of a viscous liquid film inside a vertical tube]]''<br />
|Saverio<br />
|-<br />
|'''Sept 18, 2:25pm, 901'''<br />
|[http://aeinav.wordpress.com/ Amit Einav] (Cambridge)<br />
|''[[Applied/ACMS/absF13#Amit_Einav|The entropy method in the Kac model and its relation to the Boltzmann equation]]''<br />
|Shi Jin<br />
|-<br />
|Sept 20<br />
|[http://www.math.wisc.edu/~shamgar/ Shamgar Gurevich] (UW)<br />
|''[[Applied/ACMS/absF13#Shamgar Gurevich_(UW)|The incidence and cross methods for efficient radar detection]]''<br />
|Jean-Luc, Saverio<br />
|-<br />
|Sept 27<br />
|[http://geoscience.wisc.edu/geoscience/people/faculty/michael-cardiff/ Michael Cardiff] (UW)<br />
|''[[Applied/ACMS/absF13#Michael_Cardiff_(UW)|The hydrogeologic inverse problem: characterizing aquifer heterogeneity with multi-frequency stimulations]]''<br />
|Saverio<br />
|-<br />
|Oct 4<br />
|Ronen Avni (Technion)<br />
|''[[Applied/ACMS/absF13#Ronen_Avni_(Technion)|Mathematical model for cell motility driven by active gel]]''<br />
|Saverio<br />
|-<br />
|Oct 18<br />
|[http://www.unc.edu/~khatri/ Shilpa Khatri] (UNC)<br />
|''[[Applied/ACMS/absF13#Shilpa_Khatri_(UNC)|Settling and rising in stratified fluids: fluid-structure interactions and multiphase flow]]''<br />
|Stechmann, Saverio<br />
|-<br />
|'''Wed, Oct 23'''<br />
|Junping Wang (National Science Foundation)<br />
|''[[Applied/ACMS/absF13#Junping_Wang|Weak Galerkin Finite Element Methods for PDEs]]''<br />
|Shi Jin<br />
|-<br />
|Oct 25<br />
|Douglas Zhou (Shanghai Jiao Tong)<br />
|''[[Applied/ACMS/absF13#Douglas_Zhou|Causal and structural connectivity of neuronal networks]]''<br />
|Shi Jin<br />
|-<br />
|Nov 1<br />
|[http://web.anl.gov/biomaterials/researchers/igor-aronson.html Igor Aronson] (Argonne)<br />
|''[[Applied/ACMS/absF13#Igor_Aronson_(Argonne)|Living liquid crystals]]''<br />
|Saverio<br />
|-<br />
|Nov 8<br />
|[http://www.math.ucsd.edu/~bli/ Bo Li] (UCSD)<br />
|''[[Applied/ACMS/absF13#Bo_Li_(UCSD)|Variational implicit solvation of biomolecules]]''<br />
|Shi Jin<br />
|-<br />
|'''Wed, Nov 13'''<br />
|[http://users.ices.utexas.edu/~hu/Site/Home.html Jingwei Hu] (Texas)<br />
|''[[Applied/ACMS/absF13#Jingwei_Hu_(Texas)|TBA]]''<br />
|Shi Jin<br />
|-<br />
|Nov 15<br />
|[http://mbudisic.wordpress.com/ Marko Budisic] (UW)<br />
|''[[Applied/ACMS/absF13#Marko_Budisic_(UW)|Visualizing invariant structures of dynamical systems using the ergodic quotient]]''<br />
|Jean-Luc<br />
|-<br />
|Nov 22<br />
|[http://www.math.umn.edu/~ymori/ Yoichiro Mori] (Minnesota)<br />
|''[[Applied/ACMS/absF13#Yoichiro_Mori_(Minnesota)|TBA]]''<br />
|Saverio<br />
|-<br />
|'''Thurs, Dec 5'''<br />
|[https://sites.google.com/site/cgkoay/pr Cheng Koay] (UW) [joint with applied algebra]<br />
|''[[Applied/ACMS/absF13#Cheng_Koay_(UW)|Symmetry and uniformity considerations in Magnetic Resonance Imaging acquisitions]]''<br />
|Julie<br />
|-<br />
|Dec 13<br />
|TBA<br />
|''[[Applied/ACMS/absF13#|TBA]]''<br />
|<br />
|-<br />
|<br />
|}<br />
<br />
== Spring 2014 Semester ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Jan 31<br />
|[http://scholar.google.com/scholar?hl=en&as_sdt=0,50&q=harvey+segur Harvey Segur] (Colorado)<br />
|''[[Applied/ACMS/absS14#Harvey_Segur|TBA]]''<br />
|Saverio<br />
|-<br />
|Feb 7<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Feb 14<br />
|[http://www.astro.wisc.edu/our-people/faculty/donghia-elena/ Elena D'Onghia] (UW)<br />
|''[[Applied/ACMS/absS14#Elena_DOnghia|TBA]]''<br />
|Saverio<br />
|-<br />
|'''Feb 21, 4pm, B239'''<br />
|[http://math.nyu.edu/faculty/shelley/ Michael Shelley] (Courant)<br />
|''[[Applied/ACMS/absS14#Michael_Shelley|TBA]]''<br />
|'''Colloquium'''<br />
|-<br />
|Feb 28<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Mar 7<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Mar 14<br />
|[http://www.mcs.anl.gov/~wild/ Stefan Wild] (Argonne)<br />
|''[[Applied/ACMS/absS14#Stefan_Wild|TBA]]''<br />
|Saverio<br />
|-<br />
|Mar 28<br />
|[http://www.math.canterbury.ac.nz/~m.steel/ Mike Steel] (University of Canterbury)<br />
|''[[Applied/ACMS/absS14#Mike_Steel|TBA]]''<br />
|Sebastien<br />
|-<br />
|Apr 4<br />
|[https://directory.engr.wisc.edu/ie/faculty/mclay_laura/ Laura McLay] (UW)<br />
|''[[Applied/ACMS/absS14#Laura_McLay|TBA]]''<br />
|Julie<br />
|-<br />
|Apr 11<br />
|TBA<br />
|''[[Applied/ACMS/absS14#|TBA]]''<br />
|<br />
|-<br />
|Apr 18<br />
|[http://www.nwra.com/resumes/lelong/ Marie-Pascale Lelong] (NorthWest Research Associates)<br />
|''[[Applied/ACMS/absS14#Marie_Pascale_Lelong|TBA]]''<br />
|Leslie<br />
|-<br />
|Apr 25<br />
|[http://math.berkeley.edu/~wilken/ Jon Wilkening] (UC Berkeley)<br />
|''[[Applied/ACMS/absS14#Jon_Wilkening|TBA]]''<br />
|Saverio<br />
|-<br />
|May 2<br />
|[http://www.math.utah.edu/~choheneg/ Christel Hohenegger] (Utah)<br />
|''[[Applied/ACMS/absS14#Christel_Hohenegger|TBA]]''<br />
|Saverio<br />
|-<br />
|May 9<br />
|[http://amath.colorado.edu/faculty/jdm/index.html Jim Meiss] (Colorado) <br />
|''[[Applied/ACMS/absS14#Jim_Meiss|TBA]]''<br />
|Saverio<br />
|}<br />
<br />
<br />
<br><br />
<br />
== Archived semesters ==<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 />
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<br><br />
<br />
----<br />
Return to the [[Applied|Applied Mathematics Group Page]]</div>Markohttps://www.math.wisc.edu/wiki/index.php?title=Applied/ACMS/absF13&diff=6202Applied/ACMS/absF132013-10-30T16:15:17Z<p>Marko: </p>
<hr />
<div>= ACMS Abstracts: Fall 2013 =<br />
<br />
=== Rob Sturman (Leeds) ===<br />
<br />
''Lecture 1: The ergodic hierarchy & uniform hyperbolicity''<br />
<br />
Ergodic theory provides a hierarchy of behaviours of increasing<br />
complexity, essentially covering dynamics from indecomposable,<br />
through mixing, to apparently random. Demonstrating that a<br />
(real) system possesses any of these properties is typically difficult,<br />
but one important class of system - uniformly hyperbolic systems -<br />
make the ergodic hierarchy immediately accessible. Uniform hyperbolicity<br />
is a strong condition, and so we also describe its weaker counterpart,<br />
non-uniform hyperbolicity. Our chief example in this lecture is the Arnold<br />
Cat Map, an example of a hyperbolic toral automorphism.<br />
<br />
''Lecture 2: Non-uniform hyperbolicity & Pesin theory''<br />
<br />
The connection between non-uniform hyperbolicity and the ergodic<br />
hierarchy is more difficult, but is made possible by the work of<br />
Yakov Pesin in 1977, and extensions due to Katok & Strelcyn.<br />
Here we illustrate the theory with a linked twist map, a paradigmatic<br />
example of non-uniformly hyperbolic system.<br />
<br />
''Seminar: Rates of mixing in models of fluid flow''<br />
<br />
The exponential complexity of chaotic advection might be reasonably<br />
assumed to produce exponential rates of mixing. However, experiments<br />
suggest that in practice, boundaries slow mixing rates down. We give<br />
rigorous results from smooth ergodic theory which establishes polynomial<br />
mixing rates for linked twist maps, a class of simple models of bounded flows.<br />
<br />
=== Reed Ogrosky (UW) ===<br />
<br />
''Long-wave modeling of a viscous liquid film inside a vertical tube''<br />
<br />
Viscous film flows that coat the interior of a cylinder arise naturally in industrial and biological settings and have a free surface that is unstable to long-wave disturbances. I will discuss a series of recently derived long-wave asymptotic models of these flows, and an accompanying set of experiments, in the (i) absence and (ii) presence of a steady, upwards pressure-driven airflow. In the absence of airflow, the long-wave models show excellent agreement with experiments. In the presence of airflow, the agreement is primarily qualitative in nature, though modifications to the modeling of the free surface stress improve the agreement. In both cases, the long-wave models capture qualitative features of the flow seen in the experiments that are not captured by their popular thin-film model counterparts.<br />
<br />
=== Amit Einav (Cambridge) ===<br />
<br />
One of the most influential equations in the kinetic theory of gases is the so-called Boltzmann equation, describing the time evolution of the probability density of a particle in dilute gas. While widely used, and intuitive, the Boltzmann equation poses an interesting conceptual problem: as an equation, it is irreversible in time. However, one assumes that such equation arises from reversible Newtonian laws, which seems like a contradiction. This raises the following question: can one achieve an irreversible system from a reversible one, in macroscopic time scales? If so, how can it happen? In his 1956 paper, Marc Kac presented an attempt to solve this problem in a particular settings of the spatially homogeneous Boltzmann equation. Kac considered a model of N indistinguishable particles, with one dimensional velocities, that undergo a random binary collision process. Under the property of chaoticity, defined by Kac, he managed to show that when one takes the number of particles to infinity, the limit of the first marginal of the N-particle distribution function satisfies a caricature of the Boltzmann equation. Besides giving an intuitive explanation to how the Boltzmann equation can arise as a mean field limit, Kac hoped to use his model to study the properties of the Boltzmann equation - specifically, the rate of convergence to equilibrium.<br />
<br />
We will start our talk by describing the Boltzmann equation and explaining the model Kac proposed. We will then discuss the so-called spectral gap problem, posed by Kac, which attempted, unsuccessfully, to find an exponential rate of conversion to equilibrium of the mean field limit using the natural normed structure. At this point we'll discuss a different, less linear, approach to the problem - the so-called entropy method, and show that this too is unsuccessful, but has more potential to work with more delicate investigation.<br />
In our talk we will also mention McKean model, which is an extension of Kac's model to the case where the velocities are not one dimensional.<br />
Time permitting we will discuss more relevant concepts such as entropic chaos, and the effects of moments of the mean field limit on chaoticity and entropic chaos.<br />
<br />
=== Shamgar Gurevich (UW) ===<br />
<br />
''The incidence and cross methods for efficient radar detection''<br />
<br />
I will explain a model of radar detection and its digital form. The latter enables us to introduce techniques from Applied Algebra (construction of specific vectors using commutative groups of operators, and generalizations of Fast Fourier Transform techniques) to suggest new efficient algorithms for radar detection. I will explain these methods, and I will demonstrate an application to the Inhomogeneous Radar Scene Problem, formulated in our interaction with engineers from General Motors (GM), who want to develop sensitive radar devices for cars.<br />
<br />
This is a joint work with Alexander Fish (Mathematics, Sydney) and is part from a joint project with Igal Bilik (GM), Akbar Sayeed (ECE, Madison), Oded Schwartz (EECS, Berkeley), and Kobi Scheim (GM).<br />
<br />
=== Michael Cardiff (UW) ===<br />
<br />
''The hydrogeologic inverse problem: characterizing aquifer heterogeneity with multi-frequency stimulations''<br />
<br />
The parameters that control the flow of water and transport of contaminants underground in aquifers are extraordinarily heterogeneous, often varying by 2-3 orders of magnitude even in aquifer deposits that are considered relatively “homogeneous”. Estimation of the spatial distribution of these parameters is often the key prerequisite for performing accurate predictive modeling of hydrogeologic systems. In this talk, I will introduce the hydrogeologic inverse problem and discuss various approaches that have been suggested in order to gain information about the heterogeneity in the subsurface. I will then discuss a modern strategy, Hydraulic Tomography (HT), which helps to constrain aquifer heterogeneity through cross-well pressure interference tests. In particular, I will first discuss the mathematical approach, which relies on large-scale forward modeling and analysis of sensitivities using an adjoint state approach, coupled to a geostatistical inversion framework. I will then discuss practical issues associated with actual application of tomographic methodologies in the field, and present a modified strategy, Oscillatory Hydraulic Tomography, which has practical, analytical, and computational benefits beyond traditional HT.<br />
<br />
=== Ronen Avni (UW) ===<br />
<br />
''Mathematical model for cell motility driven by active gel''<br />
<br />
Cell crawling is a highly complex integrated process involving three distinct activities: protrusion adhesion and contraction, and also three players: the plasma membrane (car body), the actin network engine) and the adhesion points (clutch). The actin network consists of actin polymers and many other types of molecules, e.g. molecular motors, which dynamically attach to and detach from the network, making it a biological gel. Furthermore, energy is consumed in the form of ATP due to both the activity of molecular motors and the polymerization at the filament tips; thus the system is far from thermodynamic equilibrium. These characteristics make the above system unique and responsible for a wide range of phenomena (different force-velocity relationships) and behaviors (contraction, elongation, rotation, formation of dynamic structures)<br />
<br />
Like the story on the blind men and the elephant, previous works considered only parts of the complex process, neglecting other sub-processes, or using unrealistic assumptions. Our goal was to derive a mathematical model for the whole system that can predict the rich variety of behaviors. For this purpose we had to identify the major players and integrate previous works into a one coherent mathematical model with (almost) no arbitrary constraints, adding our own mathematical description where needed. The model we derived consists of several temporal and spatial scales, molecular processes e.g. capping / branching to macro processes; furthermore, we used a hydrodynamic approach, hence could relate local dynamic events on the boundary to the bulk inside the domain. We focused on the processes near the leading edge that drive the system, i.e. the complexity comes in the b.c., and termed this filaments-membrane dynamics “the polymerization machinery”.<br />
<br />
In my talk I will describe the mathematical model we derived and its relation to previous works. I will also describe a numerical simulation we derived for a free-surface flow of complex fluid in arbitrary geometries. Finally I will discuss open questions and opportunities in this line of research.<br />
<br />
=== Shilpa Khatri (UNC) ===<br />
<br />
''Settling and rising in stratified fluids: fluid-structure interactions and multiphase flow''<br />
<br />
The fluid dynamics of particles settling and droplets rising is vital to understanding the effect of stratification in marine settings. Whether studying marine snow aggregates settling or oil jets rising, similar small scale dynamics are observed. I will present three different cases of rising and settling in stratified fluids: (1) porous particles settling, (2) oil droplets rising, and (3) dense-core miscible vortex rings settling. Each case has been studied using experiments and by developing models and finding solutions using numerical and analytical techniques. Challenges exist in developing methodology to handle the boundary conditions at fluid-structure and fluid-fluid interfaces. We will present model results which accurately capture experimental data and give insight into the importance of entrainment. <br />
<br />
=== Junping Wang (National Science Foundation) ===<br />
<br />
''Weak Galerkin Finite Element Methods for PDEs''<br />
<br />
In this talk, the speaker will discuss the basic principles for a newly developed finite element technique, called weak Galerkin finite element methods, for partial differential equations. The discussion will be made for a model second order elliptic problem. The speaker will make a comparison between the weak Galerkin method with existing finite element methods. The talk will further be extended to other model PDEs such as the Stokes equation, the biharmonic and Maxwells equations. The talk should be accessible for graduate students with basic training in computational mathematics or PDEs.<br />
<br />
=== Douglas Zhou (Shanghai Jiao Tong) ===<br />
<br />
''Causal and structural connectivity of neuronal networks''<br />
<br />
Current experimental techniques usually cannot probe the global interconnection pattern of a network. Thus, reconstructing or reverse-engineering the network topology of coupled nodes based upon observed data has become a very active research area. Most existing reconstruction methods are based on networks of oscillators with generally smooth dynamics. However, for nonlinear and non-smooth stochastic dynamical systems, e.g., neuronal networks, the reconstruction of the full topology remains a challenge. Here, we present a noninterventional reconstruction method, which is based on Granger causality theory, for the widely used conductance-based, integrate-and-fire type neuronal networks. For this system, we have established a direct connection between Granger causal connectivity and structural connectivity.<br />
<br />
=== Igor Aronson (Argonne) ===<br />
<br />
''Living liquid crystals''<br />
<br />
Placement of swimming bacteria in lyotropic liquid crystal, a water dispersion of elongated aggregates of organic molecules, produces a new class of biomechanical systems – living liquid crystal (LLC). This new hybrid material synergistically combines the properties of both constituents: biological response to external stimuli and long-range order due to anisotropy. LLC displays a wide range of fundamentally new phenomena, from the emergence of self-organized textures caused by bacterial swimming to direct optical visualization of flagella rotation and the liquid crystal-controlled trajectories of bacterial motion. LLC sheds new light on self-organization in active biomechanical systems and can possibly lead to valuable biomedical applications.<br />
<br />
=== Bo Li (UCSD) ===<br />
<br />
''Variational implicit solvation of biomolecules''<br />
<br />
The structure and dynamics of biomolecules such as DNA and proteins determine the functions of underlying biological systems. Modeling biomolecules is, however, extremely challenging due to their enormous complexity. Recent years have seen the initial success of variational implicit-solvent models (VISM) for biomolecules. Central in VISM is an effective free-energy functional of all possible solute-solvent interfaces, coupling together the solute surface energy, solute-solvent van der Waals interactions, and electrostatic contributions. Numerical relaxation by the level-set method of such a functional determines biomolecular equilibrium conformations and minimum free energies. Comparisons with experiments and molecular dynamics simulations demonstrate that the level-set VISM can capture the hydrophobic hydration, multiple dry and wet states, and many other important solvation properties. This talk begins with a description of the level-set VISM and continues to present new developments around the VISM. These include: (1) the coupling of solute molecular mechanical interactions in the VISM; (2) the effective dielectric boundary forces; and (3) the solvent fluid fluctuations. Mathematical theory and numerical methods are discussed, and applications are presented. This is joint work mainly with J. Andrew McCammon, Li-Tien Cheng, Joachim Dzubiella, Jianwei Che, Zhongming Wang, Shenggao Zhou, and Zuojun Guo.<br />
<br />
=== Marko Budisic (UW) ===<br />
<br />
''Visualizing invariant structures of dynamical systems using the ergodic quotient''<br />
<br />
For practical purposes, ergodic measures can be understood as distributions of points in orbits of a dynamical system. Studying families of ergodic measures is an alternative approach to studying the phase portrait of a dynamical system, emphasizing an "average behavior" of a trajectory over "instantaneous behavior".<br />
<br />
The ergodic measures can be computationally represented in the space of their Fourier-Stieltjes coefficients as a direct consequence of the Birkhoff Ergodic Theorem. This representation, termed "ergodic quotient", is an analogue of the phase portait. Its geometry is analyzed using Diffusion Maps, a numerical machine-learning algorithm. It identifies continuous segments in the ergodic quotient, which correspond to families of orbits belonging to macro-scale dynamical features, e.g., elliptic islands and chaotic seas. Several examples of ergodic quotients will be presented to demonstrate the approach.<br />
This project was the topic of speaker's dissertation at UC Santa Barbara.<br />
<br />
=== Cheng Koay (UW) ===<br />
<br />
''Symmetry and uniformity considerations in Magnetic Resonance Imaging acquisitions''<br />
<br />
The problem of finding the minimum energy configurations of n electrons on the surface of the unit sphere, which is known as the Thomson problem, is extremely challenging for large n. The minimum energy configurations from the Thomson problem have been found useful as a modeling tool in a variety of problems from modeling spherical viral structures to designing imaging acquisitions in Magnetic Resonance Imaging (MRI). The Thomson problem has also inspired the development of deterministic and efficient approaches capable of generating configurations that are in good approximation to the minimum energy configurations. In this talk, the focus will be on a variant of the Thomson problem, which is to find the minimum energy configurations that are endowed with antipodal symmetry. It will be argued that these new minimum energy and antipodally symmetric configurations are more appropriate for MR acquisition design due to the fact that the raw MR data (in spatial frequency domain) and its image data (in real spatial domain) are related through the Fourier relationship and the image data, to a good approximation, is real-valued. It has taken the speaker several years with several failed attempts to establish the above claim. This talk chronicles in part the speaker's journey, a few tools that were crafted along the way, and his final exit at the end of that proverbial tunnel.</div>Marko