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All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.
All colloquia are on Fridays at 4:00 pm in Van Vleck B239, '''unless otherwise indicated'''.


== Spring 2015  ==
<!-- ==[[Tentative Colloquia|Tentative schedule for next semester]] == -->
 
==Fall 2017==


{| cellpadding="8"
{| cellpadding="8"
!align="left" | date
!align="left" | Date 
!align="left" | speaker
!align="left" | Speaker
!align="left" | title
!align="left" | Title
!align="left" | host(s)
!align="left" | Host(s)
|-
|-
| '''January 12''' (special time: '''3PM''')
|September 8
| [http://math.nd.edu/people/visiting-faculty/botong-wang/ Botong Wang] (Notre Dame)
| [https://sites.google.com/a/wisc.edu/theresa-c-anderson/home/ Tess Anderson] (Madison)
| [[Colloquia#January 12: Botong Wang (Notre Dame) | Cohomology jump loci of algebraic varieties]]
|[[#September 8: Tess Anderson (Madison) | A Spherical Maximal Function along the Primes  ]]
| Maxim
| Yang
|
|-
|-
| '''January 14''' (special time: '''11AM''')
|September 15
| [http://www.math.uiuc.edu/~jathreya/ Jayadev Athreya] (UIUC)
|
| [[Colloquia#January 14:  Jayadev Athreya (UIUC) | Counting points for random (and not-so-random) geometric structures]]
|[[#|   ]]
| Ellenberg
|
|
|
|-
|-
| '''January 15''' (special time: '''3PM''')
|September 22, '''9th floor'''
| [http://www.math.sunysb.edu/~chili/ Chi Li] (Stony Brook)
| Jaeyoung Byeon (KAIST)
| [[Colloquia#January 15: Chi Li (Stony Brook) | On Kahler-Einstein metrics and K-stability]]
|[[#September 22: Jaeyoung Byeon (KAIST) | Patterns formation for elliptic systems with large interaction forces  ]]
| Sean Paul
| Rabinowitz & Kim
|
|-
|-
| '''January 21'''
|September 29
| [http://www.math.utoronto.ca/cms/kitagawa-jun/ Jun Kitagawa] (Toronto)
|
| [[Colloquia#January 21:  Jun Kitagawa (Toronto) | Regularity theory for generated Jacobian equations: from optimal transport to geometric optics]]
|[[# TBATBA ]]
| Feldman
|-
| '''January 23''' (special room/time: '''B135, 2:30PM''')
| [http://math.duke.edu/~adding/ Nicolas Addington] (Duke)
| [[Colloquia#January 23: Nicolas Addington (Duke) | Recent developments in rationality of cubic 4-folds]]
| Ellenberg
|-
| '''Monday January 26 4pm'''
| [http://www.bcamath.org/en/people/minh-binh Minh Binh Tran] (CAM)
| [[Colloquia#January 26:  Minh Binh Tran (CAM) | Nonlinear approximation theory for the homogeneous Boltzmann
equation]]
| Jin
|-
| January 30
| Tentatively reserved for possible interview
|
|
|
|
|-
|-
| '''Monday, February 2 4pm'''
|October 6,  '''9th floor'''
| [https://web.math.princeton.edu/~ajsb/ Afonso Bandeira] (Princeton)
| [http://www3.nd.edu/~jhauenst/ Jonathan Hauenstein] (Notre Dame)
| [[Colloquia#February 2: Afonso Bandeira (Princeton) | Tightness of convex relaxations for certain inverse problems on graphs]]
|[[#October 6: Jonathan Hauenstein (Notre Dame) | Real solutions of polynomial equations ]]
| Ellenberg
| Boston
|
|-
|-
| February 6
|October 13, '''9th floor'''
| Morris Hirsch (UC Berkeley and UW Madison)
| [http://www.tomokokitagawa.com/ Tomoko L. Kitagawa] (Berkeley)
| [[Colloquia#February 6: Morris Hirsch (UC Berkeley and UW Madison) | Fixed points of Lie transformation group,  and zeros of Lie algebras of vector fields]]
|[[#October 13: Tomoko Kitagawa (Berkeley) |  A Global History of Mathematics from 1650 to 2017 ]]
| Stovall
| Max
|
|-
|-
| February 13
|October 20
| [http://www.math.ucsb.edu/~mputinar/ Mihai Putinar] (UC Santa Barbara, Newcastle University)
| [http://cims.nyu.edu/~pgermain/ Pierre Germain] (Courant, NYU)  
| [[Colloquia#February 13: Mihai Putinar (UC Santa Barbara) | Quillen’s property of real algebraic varieties]]
|[[#October 13: Pierre Germain (Courant, NYU) | Stability of the Couette flow in the Euler and Navier-Stokes equations ]]
| Budišić
| Minh-Binh Tran
|
|-
|-
| February 20
|October 27
| [http://www.mathcs.emory.edu/~dzb/ David Zureick-Brown] (Emory University)
|Stefanie Petermichl (Toulouse)
| [[Colloquia#February 20: David Zureick-Brown (Emory University) | Diophantine and tropical geometry]]
|[[# TBA| TBA  ]]
| Ellenberg
| Stovall, Seeger
|
|-
|-
| February 27
|We, November 1
| [http://www.math.rochester.edu/people/faculty/allan/ Allan Greenleaf] (University of Rochester)
|Shaoming Guo (Indiana)
| TBA
|[[# TBA|  TBA ]]
| Seeger
|
|
|
|-
|-
| March 6
|November 3
| [http://math.mit.edu/~lguth/ Larry Guth] (MIT)
|[[# TBA|  TBA ]]
| [[Colloquia#March 6: Larry Guth (MIT) | Introduction to incidence geometry]]
|
| Stovall
|
|-
|-
| March 13
|November 10
|[http://www.ma.utexas.edu/text/webpages/gordon.html Cameron Gordon] (UT-Austin)
| Reserved for possible job talks
| TBA
|[[# TBA|  TBA  ]]
| Maxim
|
|
|-
|-
| March 20
|November 17
| Reserved for possible job talks
|[[# TBA|  TBA  ]]
|
|
|
|-
|November 24
|'''Thanksgiving break'''
|[[# TBA|  TBA  ]]
|
|
|
|
|-
|-
| March 27
|December 1
|[http://php.indiana.edu/~korr/ Kent Orr] (Indiana University at Bloomigton)
| Reserved for possible job talks
| TBA
|[[# TBA|  TBA  ]]
| Maxim
|
|
|-
|-
| April 3
|December 8
| University holiday
| Reserved for possible job talks
|[[# TBA|  TBA  ]]
|
|
|
|
|-
|-
| April 10
 
| [http://www-users.math.umn.edu/~jyfoo/ Jasmine Foo] (University of Minnesota)
|TBA
| Roch, WIMAW
|-
| April 17
| [http://www.math.uiuc.edu/~kkirkpat/ Kay Kirkpatrick] (University of Illinois-Urbana Champaign)
| TBA
| Stovall
|-
| April 24
| Marianna Csornyei (University of Chicago)
| TBA
| Seeger, Stovall
|-
| May 1
| [http://www.math.washington.edu/~bviray/ Bianca Viray] (University of Washington)
| TBA
| Erman
|-
| May 8
| [http://www.math.ucla.edu/~mroper/www/Home.html Marcus Roper] (UCLA)
| TBA
| Roch
|}
|}


== Abstracts ==
== Fall Abstracts ==
=== September 8: Tess Anderson (Madison) ===
Title: A Spherical Maximal Function along the Primes


===January 12Botong Wang (Notre Dame)===
Abstract: Many problems at the interface of analysis and number theory involve showing that the primes, though deterministic, exhibit random behavior. The Green-Tao theorem stating that the primes contain infinitely long arithmetic progressions is one such example.  In this talk, we show that prime vectors equidistribute on the sphere in the same manner as a random set of integer vectors would be expected to.  We further quantify this with explicit bounds for naturally occurring maximal functions, which connects classical tools from harmonic analysis with analytic number theory.  This is joint work with Cook, Hughes, and Kumchev.


====Cohomology jump loci of algebraic varieties====


In the moduli spaces of vector bundles (or local systems), cohomology jump loci are the algebraic sets where certain cohomology group has prescribed dimension. We will discuss some arithmetic and deformation theoretic aspects of cohomology jump loci. If time permits, we will also talk about some applications in algebraic statistics.
=== September 22: Jaeyoung Byeon (KAIST) ===
Title: Patterns formation for elliptic systems with large interaction forces


===January 14: Jayadev Athreya (UIUC)===
Abstract: Nonlinear elliptic systems arising from nonlinear Schroedinger systems have simple looking reaction terms. The corresponding energy for the reaction terms can be expressed as quadratic forms in terms of density functions.  The i, j-th entry of the matrix for the quadratic form represents the interaction force between the components i and j of the system. If the sign of an entry is positive, the force between the two components is attractive; on the other hand, if it is negative, it is repulsive. When the interaction forces between different components are large, the network structure of attraction and repulsion between components might produce several interesting patterns for solutions. As a starting point to study the general pattern formation structure for systems with a large number of components, I will first discuss the simple case of 2-component systems, and then the much more complex case of 3-component systems.


====Counting points for random (and not-so-random) geometric structures====
===October 6: Jonathan Hauenstein (Notre Dame) ===
Title: Real solutions of polynomial equations


We describe a philosophy of how certain counting problems can be studied by methods of probability theory and dynamics on appropriate moduli spaces. We focus on two particular cases:
Abstract: Systems of nonlinear polynomial equations arise frequently in applications with the set of real solutions typically corresponding to physically meaningful solutions.  Efficient algorithms for computing real solutions are designed by exploiting structure arising from the application.  This talk will highlight some of these algorithms for various applications such as solving steady-state problems of hyperbolic conservation laws, solving semidefinite programs, and computing all steady-state solutions of the Kuramoto model.


(1) Counting for Right-Angled Billiards: understanding the dynamics on and volumes of moduli spaces of meromorphic quadratic differentials yields interesting universality phenomenon for billiards in polygons with interior angles integer multiples of 90 degrees. This is joint work with A. Eskin and A. Zorich
===October 13: Tomoko Kitagawa (Berkeley) ===
Title: A Global History of Mathematics from 1650 to 2017


(2) Counting for almost every quadratic form: understanding the geometry of a random lattice allows yields striking diophantine and counting results for typical (in the sense of measure) quadratic (and other) forms. This is joint work with G. A. Margulis.
Abstract: This is a talk on the global history of mathematics. We will first focus on France by revisiting some of the conversations between Blaise Pascal (1623–1662) and Pierre de Fermat (1607–1665). These two “mathematicians” discussed ways of calculating the possibility of winning a gamble and exchanged their opinions on geometry. However, what about the rest of the world? We will embark on a long oceanic voyage to get to East Asia and uncover the unexpected consequences of blending foreign mathematical knowledge into domestic intelligence, which was occurring concurrently in Beijing and Kyoto. How did mathematicians and scientists contribute to the expansion of knowledge? What lessons do we learn from their experiences?


===January 15: Chi Li (Stony Brook)===
===October 13: Pierre Germain (Courant, NYU) ===
Title: Stability of the Couette flow in the Euler and Navier-Stokes equations
====On Kahler-Einstein metrics and K-stability====


The existence of Kahler-Einstein metrics on Kahler manifolds is a basic problem in complex differential geometry. This problem has connections to other fields: complex algebraic geometry, partial differential equations and several complex variables. I will discuss the existence of Kahler-Einstein metrics on Fano manifolds and its relation to K-stability. I will mainly focus on the analytic part of the theory, discuss how to solve the related complex Monge-Ampere equations and provide concrete examples in both smooth and conical settings. If time permits, I will also say something about the algebraic part of the theory, including the study of K-stability using the Minimal Model Program (joint with Chenyang Xu) and the existence of proper moduli space of smoothable K-polystable Fano varieties (joint with Xiaowei Wang and Chenyang Xu).  
Abstract: I will discuss the question of the (asymptotic) stability of the Couette flow in Euler and Navier-Stokes. The Couette flow is the simplest nontrivial stationary flow, and the first one for which this question can be fully answered. The answer involves the mathematical understanding of important physical phenomena such as inviscid damping and enhanced dissipation. I will present recent results in dimension 2 (Bedrossian-Masmoudi) and dimension 3 (Bedrossian-Germain-Masmoudi).


===January 21:  Jun Kitagawa (Toronto)===
== Spring 2018 ==


====Regularity theory for generated Jacobian equations: from optimal transport to geometric optics====
{| cellpadding="8"
!align="left" | date 
!align="left" | speaker
!align="left" | title
!align="left" | host(s)
|-
| March 16
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)
|[[# TBA|  TBA  ]]
| WIMAW
|
|-
|April 4 (Wednesday)
| [http://math.ucr.edu/home/baez/ John Baez] (UC Riverside)
|[[# TBA|  TBA  ]]
| Craciun
|
|-
| April 6
| Reserved
|[[# TBA|  TBA  ]]
| Melanie
|
|-
| April 13
| [https://www.math.brown.edu/~jpipher/ Jill Pipher] (Brown)
|[[# TBA|  TBA  ]]
| WIMAW
|
|-
|date
| person (institution)
|[[# TBA|  TBA  ]]
| hosting faculty
|
|-
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|[[# TBA|  TBA  ]]
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|-
|date
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|date
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|}


Equations of Monge-Ampere type arise in numerous contexts, and solutions often exhibit very subtle qualitative and quantitative properties; this is owing to the highly nonlinear nature of the equation, and its degeneracy (in the sense of ellipticity). Motivated by an example from geometric optics, I will talk about the class of Generated Jacobian Equations; recently introduced by Trudinger, this class also encompasses, for example, optimal transport, the Minkowski problem, and the classical Monge-Ampere equation. I will present a new regularity result for weak solutions of these equations, which is new even in the case of equations arising from near-field reflector problems (of interest from a physical and practical point of view). This talk is based on joint works with N. Guillen.
== Spring Abstracts ==


===January 23: Nicolas Addington (Duke)===
=== <DATE>: <PERSON> (INSTITUTION) ===
Title: <TITLE>


====Recent developments in rationality of cubic 4-folds====
Abstract: <ABSTRACT>


The question of which cubic 4-folds are rational is one of the foremost open problems in algebraic geometry.  I'll start by explaining what this means and why it's interesting; then I'll discuss three approaches to solving it (including one developed in the last year), my own work relating the three approaches to one another, and the troubles that have befallen each approach.


===January 26:  Minh Binh Tran (CAM)===
== Past Colloquia ==
 
====Nonlinear approximation theory for the homogeneous Boltzmann equation====
 
A challenging problem in solving the Boltzmann equation
numerically is that the velocity space is approximated by a finite region.
Therefore, most methods are based on a truncation technique and the
computational cost is then very high if the velocity domain is large.
Moreover, sometimes, non-physical conditions have to be imposed on the
equation in order to keep the velocity domain bounded. In this talk, we
introduce the first nonlinear approximation theory for the Boltzmann
equation. Our nonlinear wavelet approximation is non-truncated and based on
a nonlinear, adaptive spectral method associated with a new wavelet
filtering technique and a new formulation of the equation. The
approximation is proved to converge and perfectly preserve most of the
properties of the homogeneous Boltzmann equation. It could also be
considered as a general framework for approximating kinetic integral
equations.
 
===February 2:  Afonso Bandeira (Princeton)===
 
====Tightness of convex relaxations for certain inverse problems on graphs====
 
Many maximum likelihood estimation problems are known to be
intractable in the worst case. A common approach is to consider convex
relaxations of the maximum likelihood estimator (MLE), and relaxations
based on semidefinite programming (SDP) are among the most popular. We
will focus our attention on a certain class of graph-based inverse
problems and show a couple of remarkable phenomena.
 
In some instances of these problems (such as community detection under
the stochastic block model) the solution to the SDP matches the ground
truth parameters (i.e. achieves exact recovery) for information
theoretically optimal regimes. This is established using new
nonasymptotic bounds for the spectral norm of random matrices with
independent entries.
 
On other instances of these problems (such as angular
synchronization), the MLE itself tends to not coincide with the ground
truth (although maintaining favorable statistical properties).
Remarkably, these relaxations are often still tight (meaning that the
solution of the SDP matches the MLE). For angular synchronization we
can understand this behavior by analyzing the solutions of certain
randomized Grothendieck problems. However, for many other problems,
such as the multireference alignment problem in signal processing,
this remains a fascinating open problem.
 
===February 6:  Morris Hirsch (UC Berkeley and UW Madison)===
 
====Fixed points of  Lie transformation group,  and zeros of Lie algebras of vector fields====
 
The following questions will be considered:
When  a connected Lie group G acts effectively on a manifold M,  what  general conditions on G,  M and the action  ensure that the action has a fixed point? 
If  g is a Lie algebra of  vector fields on M, what general conditions on g and M  ensure that g has a zero?
Old and new results will be discussed.  For example:
Theorem: If G is nilpotent and M is a  compact surface of nonzero Euler characteristic, there is a fixed point.
Theorem:  Suppose G is supersoluble and M is as above.  Then every analytic action of G on M has a fixed point, but this is false for continuous actions, and for groups that are merely solvable.
Theorem:  Suppose M is a real or complex manifold that is 2-dimensional over the ground field, and g is a Lie algebra of analytic vector fields on M.  Assume  some element X in g spans a 1-dimensional ideal.  If  the zero set K of X is compact and the Poincar'e-Hopf index of X at K is nonzero,  then g vanishes at some point of K.
No special knowledge of Lie groups will be assumed.
 
===February 13:  Mihai Putinar (UC Santa Barbara)===
 
====Quillen’s property of real algebraic varieties====
 
A famous observation discovered by Fejer and Riesz a century ago
is the quintessential algebraic component of every spectral decomposition
result. It asserts that every non-negative polynomial on the unit circle is a
hermitian square. About half a century ago, Quillen proved that a positive polynomial
on an odd dimensional sphere is a sum of hermitian squares. Fact independently
rediscovered much later by D’Angelo and Catlin, respectively Athavale. The main subject of
the talk will be: on which real algebraic sub varieties of <math>\mathbb{C}^n</math> is Quillen theorem valid?
An interlace between real algebraic geometry, quantization techniques and complex
hermitian geometry will provide an answer to the above question, and more.
Based a recent work with Claus Scheiderer and John D’Angelo.


===February 20: David Zureick-Brown (Emory University)===
[[Colloquia/Blank|Blank Colloquia]]


====Diophantine and tropical geometry====
[[Colloquia/Spring2017|Spring 2017]]


Diophantine geometry is the study of integral solutions to a polynomial equation. For instance, for integers
[[Archived Fall 2016 Colloquia|Fall 2016]]
<math>a,b,c \geq 2</math> satisfying <math>\tfrac1a + \tfrac1b + \tfrac1c > 1</math>, Darmon and Granville proved that the individual generalized Fermat equation <math>x^a + y^b = z^c</math> has only finitely many coprime integer solutions. Conjecturally something stronger is true: for <math>a,b,c \geq 3</math> there are no non-trivial solutions.


I'll discuss various other Diophantine problems, with a focus on the underlying intuition and conjectural framework. I will especially focus on the uniformity conjecture, and will explain new ideas from tropical geometry and our recent partial proof of the uniformity conjecture.
[[Colloquia/Spring2016|Spring 2016]]


===March 6:  Larry Guth (MIT)===
[[Colloquia/Fall2015|Fall 2015]]


====Introduction to incidence geometry====
[[Colloquia/Spring2014|Spring 2015]]
 
Incidence geometry is a branch of combinatorics that studies the possible intersection patterns of lines, circles, and other simple shapes.  For example, suppose that we have a set of L lines in the plane.  An r-rich point is a point that lies in at least r of these lines.  For a given L, r, how many r-rich points can we make?  This is a typical question in the field, and there are many variations.  What if we replace lines with circles?  What happens in higher dimensions?  We will give an introduction to this field, describing some of the important results, tools, and open problems.
 
We will discuss two important tools used in the area.  One tool is to apply topology to the problem.  This tool allows us to prove results in R^2 that are stronger than what happens over finite fields.  The second tool is to look for algebraic structure in the problem by studying low-degree polynomials that vanish on the points we are studying.  We will also discuss some of the (many) open problems in the field and try to describe the nature of the difficulties in approaching them.
 
== Past Colloquia ==


[[Colloquia/Fall2014|Fall 2014]]
[[Colloquia/Fall2014|Fall 2014]]

Revision as of 20:30, 20 October 2017


Mathematics Colloquium

All colloquia are on Fridays at 4:00 pm in Van Vleck B239, unless otherwise indicated.


Fall 2017

Date Speaker Title Host(s)
September 8 Tess Anderson (Madison) A Spherical Maximal Function along the Primes Yang
September 15
September 22, 9th floor Jaeyoung Byeon (KAIST) Patterns formation for elliptic systems with large interaction forces Rabinowitz & Kim
September 29 TBA
October 6, 9th floor Jonathan Hauenstein (Notre Dame) Real solutions of polynomial equations Boston
October 13, 9th floor Tomoko L. Kitagawa (Berkeley) A Global History of Mathematics from 1650 to 2017 Max
October 20 Pierre Germain (Courant, NYU) Stability of the Couette flow in the Euler and Navier-Stokes equations Minh-Binh Tran
October 27 Stefanie Petermichl (Toulouse) TBA Stovall, Seeger
We, November 1 Shaoming Guo (Indiana) TBA
November 3 TBA
November 10 Reserved for possible job talks TBA
November 17 Reserved for possible job talks TBA
November 24 Thanksgiving break TBA
December 1 Reserved for possible job talks TBA
December 8 Reserved for possible job talks TBA

Fall Abstracts

September 8: Tess Anderson (Madison)

Title: A Spherical Maximal Function along the Primes

Abstract: Many problems at the interface of analysis and number theory involve showing that the primes, though deterministic, exhibit random behavior. The Green-Tao theorem stating that the primes contain infinitely long arithmetic progressions is one such example. In this talk, we show that prime vectors equidistribute on the sphere in the same manner as a random set of integer vectors would be expected to. We further quantify this with explicit bounds for naturally occurring maximal functions, which connects classical tools from harmonic analysis with analytic number theory. This is joint work with Cook, Hughes, and Kumchev.


September 22: Jaeyoung Byeon (KAIST)

Title: Patterns formation for elliptic systems with large interaction forces

Abstract: Nonlinear elliptic systems arising from nonlinear Schroedinger systems have simple looking reaction terms. The corresponding energy for the reaction terms can be expressed as quadratic forms in terms of density functions. The i, j-th entry of the matrix for the quadratic form represents the interaction force between the components i and j of the system. If the sign of an entry is positive, the force between the two components is attractive; on the other hand, if it is negative, it is repulsive. When the interaction forces between different components are large, the network structure of attraction and repulsion between components might produce several interesting patterns for solutions. As a starting point to study the general pattern formation structure for systems with a large number of components, I will first discuss the simple case of 2-component systems, and then the much more complex case of 3-component systems.

October 6: Jonathan Hauenstein (Notre Dame)

Title: Real solutions of polynomial equations

Abstract: Systems of nonlinear polynomial equations arise frequently in applications with the set of real solutions typically corresponding to physically meaningful solutions. Efficient algorithms for computing real solutions are designed by exploiting structure arising from the application. This talk will highlight some of these algorithms for various applications such as solving steady-state problems of hyperbolic conservation laws, solving semidefinite programs, and computing all steady-state solutions of the Kuramoto model.

October 13: Tomoko Kitagawa (Berkeley)

Title: A Global History of Mathematics from 1650 to 2017

Abstract: This is a talk on the global history of mathematics. We will first focus on France by revisiting some of the conversations between Blaise Pascal (1623–1662) and Pierre de Fermat (1607–1665). These two “mathematicians” discussed ways of calculating the possibility of winning a gamble and exchanged their opinions on geometry. However, what about the rest of the world? We will embark on a long oceanic voyage to get to East Asia and uncover the unexpected consequences of blending foreign mathematical knowledge into domestic intelligence, which was occurring concurrently in Beijing and Kyoto. How did mathematicians and scientists contribute to the expansion of knowledge? What lessons do we learn from their experiences?

October 13: Pierre Germain (Courant, NYU)

Title: Stability of the Couette flow in the Euler and Navier-Stokes equations

Abstract: I will discuss the question of the (asymptotic) stability of the Couette flow in Euler and Navier-Stokes. The Couette flow is the simplest nontrivial stationary flow, and the first one for which this question can be fully answered. The answer involves the mathematical understanding of important physical phenomena such as inviscid damping and enhanced dissipation. I will present recent results in dimension 2 (Bedrossian-Masmoudi) and dimension 3 (Bedrossian-Germain-Masmoudi).

Spring 2018

date speaker title host(s)
March 16 Anne Gelb (Dartmouth) TBA WIMAW
April 4 (Wednesday) John Baez (UC Riverside) TBA Craciun
April 6 Reserved TBA Melanie
April 13 Jill Pipher (Brown) TBA WIMAW
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty
date person (institution) TBA hosting faculty

Spring Abstracts

<DATE>: <PERSON> (INSTITUTION)

Title: <TITLE>

Abstract: <ABSTRACT>


Past Colloquia

Blank Colloquia

Spring 2017

Fall 2016

Spring 2016

Fall 2015

Spring 2015

Fall 2014

Spring 2014

Fall 2013

Spring 2013

Fall 2012