Past Probability Seminars Spring 2020: Difference between revisions

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== Fall 2010 ==
= Fall 2018 =


<b>Thursdays in 901 Van Vleck Hall at 2:25 PM</b>, unless otherwise noted.
<b>We  usually end for questions at 3:15 PM.</b>


Thursdays in 901 Van Vleck Hall at 2:25 PM, unless otherwise noted. If you would like to receive announcements about upcoming seminars, please visit [https://www-old.cae.wisc.edu/mailman/listinfo/apseminar this page] to sign up for the email list.
If you would like to sign up for the email list to receive seminar announcements then please send an email to
[mailto:join-probsem@lists.wisc.edu join-probsem@lists.wisc.edu]




[[Past Seminars]]


==September 13, TBA ==


==Friday, September 3, 4PM B239 [http://www.math.wisc.edu/~seppalai/ Timo Seppäläinen (UW Madison)]  ([[Colloquia|Math Colloquium]])==
==September 20, TBA ==
:Title: '''Scaling exponents for a 1+1 dimensional directed polymer'''


:Abstract: Directed polymer in a random environment is a model from statistical physics that has been around for 25 years. It is a type of random walk that evolves in a random potential. This means that the walk lives in a random landscape, some parts of which are favorable and other parts unfavorable to the walk. The objective is to understand the behavior of the walk on large space and time scales.
==September 27, TBA ==
:I will begin the talk with simple random walk straight from undergraduate probability and explain what diffusive behavior of random walk means and how Brownian motion figures into the picture. The recent result of the talk concerns a particular 1+1 dimensional polymer model: the order of magnitude of the fluctuations of the polymer path is described by the exponent 2/3, in contrast with the exponent 1/2 of diffusive paths. Finding a rigorous proof of this exponent has been an open problem since the introduction of the model.


==October 4, TBA ==


==Thursday, September 16, [http://www.math.wisc.edu/~moreno/ Gregorio Moreno Flores (UW - Madison)]==
==October 11, TBA ==
:Title: '''Asymmetric directed polymers in random environments.'''


:Abstract: It is well known that the asymmetric last passage percolation problem can be approximated by a Brownian percolation model, which is itself related to the GUE random matrices. This allows to transfer many results about random matrices to the setting of asymmetric last passage percolation.<br>
==October 18, TBA ==
:In this talk, we will introduce two different schemes to treat asymmetric directed polymers in random environments.


==Thursday, September 30, [http://math.colorado.edu/~brider/ Brian Rider (University of Colorado at Boulder)]==
==October 25, TBA ==
:Title: '''Solvable two-charge models'''


:Abstract: I'll describe recent progress on ensembles of random matrix type which can be viewed as having particles of two distinct "charges", subject to coulombic interaction.  The natural (and classic) example is Ginibre's  non-symmetric Gaussian matrix in which the particles (eigenvalues) live in the complex plane.  Taking this as a starting point and forcing the particles down to the line produces a family of ensembles which interpolate (though not in the way we might want) between the well studied Gaussian Orthogonal and Symplectic Ensembles.
==November 1, TBA ==


:Joint work with Christopher Sinclair and Yuan Xu (Univ. Oregon).
==November 8, TBA ==


==Thursday, October 7, [http://www.math.wisc.edu/~valko/ Benedek Valko (UW - Madison)]==
==November 15, TBA ==
:Title: '''Scaling limits of tridiagonal matrices'''


:Abstract: I will describe the point process limits of the spectrum for a certain class of tridiagonal matrices. The limiting point process can be defined through a coupled system of stochastic differential equations. I will discuss various applications of this description, e.g. eigenvalue repulsion, probability of large gaps and central limit theorem for the number of points in an interval.
==November 22, TBA ==


==November 29, TBA ==


Joint work with E. Kritchevski and B. Virag (Toronto).
==December 6, TBA ==


==Thursday, October 14, [http://www.math.northwestern.edu/mwp/ MIDWEST PROBABILITY COLLOQUIUM], (no seminar)==


==Thursday, October 21, [http://www.math.wisc.edu/~kuelbs/ Jim Kuelbs (UW - Madison)]==
== ==
:Title: '''TBA'''


==Thursday, October 28, [http://www.math.toronto.edu/alberts/ Tom Alberts (University of Toronto)]==
[[Past Seminars]]
:Title: '''TBA'''
 
==Thursday, November 18, [http://www.math.wisc.edu/~jmiller/ Joseph S. Miller (UW - Madison)]==
:Title: '''TBA'''

Revision as of 15:01, 31 May 2018


Fall 2018

Thursdays in 901 Van Vleck Hall at 2:25 PM, unless otherwise noted. We usually end for questions at 3:15 PM.

If you would like to sign up for the email list to receive seminar announcements then please send an email to join-probsem@lists.wisc.edu


September 13, TBA

September 20, TBA

September 27, TBA

October 4, TBA

October 11, TBA

October 18, TBA

October 25, TBA

November 1, TBA

November 8, TBA

November 15, TBA

November 22, TBA

November 29, TBA

December 6, TBA

Past Seminars