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−  = Spring 2018 =  +  = Fall 2018 = 
   
 <b>Thursdays in 901 Van Vleck Hall at 2:25 PM</b>, unless otherwise noted.   <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>   <b>We usually end for questions at 3:15 PM.</b> 
   
−  If you would like to sign up for the email list to receive seminar announcements then please send an email to joinprobsem@lists.wisc.edu.  +  If you would like to sign up for the email list to receive seminar announcements then please send an email to 
 +  [mailto:joinprobsem@lists.wisc.edu joinprobsem@lists.wisc.edu] 
   
−  <! == Thursday, January 25, 2018, TBA== >
 
   
−  == Thursday, February 1, 2018, [https://people.math.osu.edu/nguyen.1261/ Hoi Nguyen], [https://math.osu.edu/ OSU]==
 
   
−  Title: '''A remark on longrange repulsion in spectrum'''
 +  ==September 13, TBA == 
   
−  Abstract: In this talk we will address a "longrange" type repulsion among the singular values of random iid matrices, as well as among the eigenvalues of random Wigner matrices. We show evidence of repulsion under arbitrary perturbation even in matrices of discrete entry distributions. In many cases our method yields nearly optimal bounds.
 +  ==September 20, TBA == 
   
−  == Thursday, February 8, 2018, [http://www.math.purdue.edu/~peterson/ Jon Peterson], [http://www.math.purdue.edu/ Purdue] ==  +  ==September 27, TBA == 
   
−  Title: '''Quantitative CLTs for random walks in random environments'''
 +  ==October 4, TBA == 
   
−  Abstract:The classical central limit theorem (CLT) states that for sums of a large number of i.i.d. random variables with finite variance, the distribution of the rescaled sum is approximately Gaussian. However, the statement of the central limit theorem doesn't give any quantitative error estimates for this approximation. Under slightly stronger moment assumptions, quantitative bounds for the CLT are given by the BerryEsseen estimates. In this talk we will consider similar questions for CLTs for random walks in random environments (RWRE). That is, for certain models of RWRE it is known that the position of the random walk has a Gaussian limiting distribution, and we obtain quantitative error estimates on the rate of convergence to the Gaussian distribution for such RWRE. This talk is based on joint works with Sungwon Ahn and Xiaoqin Guo.
 +  ==October 11, TBA == 
   
−  == <span style="color:red"> Friday, 4pm </span> February 9, 2018, <span style="color:red">Van Vleck B239</span> [http://www.math.cmu.edu/~wes/ Wes Pegden], [http://www.math.cmu.edu/ CMU]==  +  ==October 18, TBA == 
   
 +  ==October 25, TBA == 
   
−  <div style="width:400px;height:75px;border:5px solid black">
 +  ==November 1, TBA == 
−  <b><span style="color:red"> This is a probabilityrelated colloquiumPlease note the unusual room, day, and time! </span></b>
 +  
−  </div>
 +  
   
−  Title: '''The fractal nature of the Abelian Sandpile'''
 +  ==November 8, TBA == 
   
−  Abstract: The Abelian Sandpile is a simple diffusion process on the integer lattice, in which configurations of chips disperse according to a simple rule: when a vertex has at least 4 chips, it can distribute one chip to each neighbor.
 +  ==November 15, TBA == 
−  Introduced in the statistical physics community in the 1980s, the Abelian sandpile exhibits striking fractal behavior which long resisted rigorous mathematical analysis (or even a plausible explanation). We now have a relatively robust mathematical understanding of this fractal nature of the sandpile, which involves surprising connections between integer superharmonic functions on the lattice, discrete tilings of the plane, and Apollonian circle packings. In this talk, we will survey our work in this area, and discuss avenues of current and future research.
 +  
   
−  == Thursday, February 15, 2018, Benedek Valkó, UWMadison ==  +  ==November 22, TBA == 
−   +  
−  Title: '''Random matrices, operators and analytic functions'''
 +  
−   +  
−  Abstract: Many of the important results of random matrix theory deals with limits of the eigenvalues of certain random matrix ensembles. In this talk I review some recent results on limits of `higher level objects' related to random matrices: the limits of random matrices viewed as operators and also limits of the corresponding characteristic functions.
 +  
−   +  
−  (Joint with B. Virág (Toronto/Budapest))
 +  
−   +  
−  == Thursday, February 22, 2018, [http://pages.cs.wisc.edu/~raskutti/ Garvesh Raskutti] [https://www.stat.wisc.edu/ UWMadison Stats] and [https://wid.wisc.edu/people/garveshraskutti/ WID]==
 +  
−   +  
−  Title: TBA
 +  
−   +  
−  <! == Thursday, March 1, 2018, TBA== >
 +  
−   +  
−  == Thursday, March 8, 2018, TBA==
 +  
−  == Thursday, March 15, 2018, [http://web.mst.edu/~huwen/ Wenqing Hu] [http://math.mst.edu/ Missouri S&T]==
 +  
−   +  
−  TBa
 +  
−   +  
−  == Thursday, March 22, 2018, [http://math.mit.edu/~mustazee/ Mustazee Rahman], [http://math.mit.edu/index.php MIT]==
 +  
−   +  
−  == Thursday, March 29, 2018, Spring Break ==
 +  
−  == Thursday, April 5, 2018, TBA==
 +  
−  == Thursday, April 12, 2018, TBA==
 +  
−  == Thursday, April 19, 2018, TBA==
 +  
−  == Thursday, April 26, 2018, TBA==
 +  
−  == Thursday, May 3, 2018,TBA==
 +  
−  == Thursday, May 10, 2018, TBA==
 +  
   
 +  ==November 29, TBA == 
   
 +  ==December 6, TBA == 
   
   