Difference between revisions of "Colloquia"

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(Spring 2018)
 
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|October 13
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|October 13, '''9th floor'''
|Tomoko L. Kitagawa (Berkeley)
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| [http://www.tomokokitagawa.com/ Tomoko L. Kitagawa] (Berkeley)
|[[# TBATBA  ]]
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|[[#October 13: Tomoko Kitagawa (Berkeley) A Global History of Mathematics from 1650 to 2017 ]]
 
| Max
 
| Max
 
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|October 20
 
|October 20
 
|  [http://cims.nyu.edu/~pgermain/ Pierre Germain] (Courant, NYU)  
 
|  [http://cims.nyu.edu/~pgermain/ Pierre Germain] (Courant, NYU)  
|[[# TBATBA  ]]
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|[[#October 13: Pierre Germain (Courant, NYU) Stability of the Couette flow in the Euler and Navier-Stokes equations ]]
 
|  Minh-Binh Tran
 
|  Minh-Binh Tran
 
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|November 3
 
|November 3
|Robert Laugwitz  (Rutgers)
 
 
|[[# TBA|  TBA  ]]
 
|[[# TBA|  TBA  ]]
|Dima Arinkin
 
 
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Title: Real solutions of polynomial equations
 
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.  
+
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 ==
 
== Spring 2018 ==
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!align="left" | host(s)
 
!align="left" | host(s)
 
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| March 30
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| March 16
 
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)
 
|[https://math.dartmouth.edu/~annegelb/ Anne Gelb] (Dartmouth)
 
|[[# TBA|  TBA  ]]
 
|[[# TBA|  TBA  ]]
| Qin
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| WIMAW
 
|
 
|
 
|-
 
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| April 6
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|April 4 (Wednesday)
| Reserved
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| [http://math.ucr.edu/home/baez/ John Baez] (UC Riverside)
 
|[[# TBA|  TBA  ]]
 
|[[# TBA|  TBA  ]]
| Melanie
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| Craciun
 
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|
 
|-
 
|-
|date
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| April 6
| person (institution)
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| Reserved
 
|[[# TBA|  TBA  ]]
 
|[[# TBA|  TBA  ]]
| hosting faculty
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| Melanie
 
|
 
|
 
|-
 
|-
|date
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| April 13
| person (institution)
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| [https://www.math.brown.edu/~jpipher/ Jill Pipher] (Brown)
 
|[[# TBA|  TBA  ]]
 
|[[# TBA|  TBA  ]]
| hosting faculty
+
| WIMAW
 
|
 
|
 
|-
 
|-

Latest revision as of 15:30, 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