Difference between revisions of "Probability Seminar"

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(Thursday, February 8, 2017, [http://www.math.purdue.edu/~peterson/ Jon Peterson}, Purdue)
(Friday, August 10, 10am, B239 Van Vleck András Mészáros, Central European University, Budapest)
 
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__NOTOC__
 
__NOTOC__
  
= Spring 2018 =
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= 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 join-probsem@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:join-probsem@lists.wisc.edu join-probsem@lists.wisc.edu]
  
== Thursday, September 21, 2017, TBA==
 
  
== Thursday, January 25, 2017, TBA==
 
== Thursday, February 1, 2017, TBA==
 
== Thursday, February 8, 2017, [http://www.math.purdue.edu/~peterson/ Jon Peterson}, [http://www.math.purdue.edu/ Purdue]==
 
  
Title: TBA
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==<span style="color:red"> Friday, August 10, 10am, B239 Van Vleck </span> András Mészáros, Central European University, Budapest ==
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<div style="width:330px;height:70px;border:5px solid black">
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<b><span style="color:red"> ** Please note the unusual day, time, and room. **</span></b>
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</div>
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Title: '''The distribution of sandpile groups of random regular graphs'''
  
 
Abstract:
 
Abstract:
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We study the distribution of the sandpile group of random <math>d</math>-regular graphs. For the directed model we prove that it follows the Cohen-Lenstra heuristics, that is, the probability that the <math>p</math>-Sylow subgroup of the sandpile group is a given <math>p</math>-group <math>P</math>, is proportional to <math>|\operatorname{Aut}(P)|^{-1}</math>. For finitely many primes, these events get independent in limit. Similar results hold for undirected random regular graphs, there for odd primes the limiting distributions are the ones given by Clancy, Leake and Payne.
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Our results extends a recent theorem of Huang saying that the adjacency matrices of random <math>d</math>-regular directed graphs are invertible with high probability to the undirected case.
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==September 13, TBA ==
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==September 20, [http://math.columbia.edu/~hshen/ Hao Shen], [https://www.math.wisc.edu/ UW-Madison] ==
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==September 27, TBA ==
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==October 4, [https://people.math.osu.edu/paquette.30/  Elliot Paquette], [https://math.osu.edu/ OSU] ==
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==October 11, [https://www.math.utah.edu/~janjigia/ Chris Janjigian], [https://www.math.utah.edu/ University of Utah] ==
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==October 18-20, [http://sites.math.northwestern.edu/mwp/ Midwest Probability Colloquium], No Seminar ==
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==October 25, TBA ==
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==November 1, TBA ==
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==November 8, TBA ==
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==November 15, TBA ==
  
== Thursday, February 15, 2017, TBA==
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==November 22, [https://en.wikipedia.org/wiki/Thanksgiving Thanksgiving] Break, No Seminar ==
== Thursday, February 22, 2017, TBA==
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== Thursday, March 1, 2017, TBA==
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== Thursday, March 8, 2017, TBA==
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== Thursday, March 15, 2017, TBA==
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== Thursday, March 22, 2017, TBA==
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== Thursday, March 29, 2017, Spring Break ==
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== Thursday, April 5, 2017, TBA==
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== Thursday, April 12, 2017, TBA==
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== Thursday, April 19, 2017, TBA==
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== Thursday, April 26, 2017, TBA==
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== Thursday, May 3, 2017, TBA==
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== Thursday, May 10, 2017, TBA==
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 +
==November 29, TBA ==
  
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==December 6, TBA ==
  
  

Latest revision as of 15:42, 31 July 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


Friday, August 10, 10am, B239 Van Vleck András Mészáros, Central European University, Budapest

** Please note the unusual day, time, and room. **

Title: The distribution of sandpile groups of random regular graphs

Abstract: We study the distribution of the sandpile group of random d-regular graphs. For the directed model we prove that it follows the Cohen-Lenstra heuristics, that is, the probability that the p-Sylow subgroup of the sandpile group is a given p-group P, is proportional to |\operatorname{Aut}(P)|^{-1}. For finitely many primes, these events get independent in limit. Similar results hold for undirected random regular graphs, there for odd primes the limiting distributions are the ones given by Clancy, Leake and Payne.

Our results extends a recent theorem of Huang saying that the adjacency matrices of random d-regular directed graphs are invertible with high probability to the undirected case.

September 13, TBA

September 20, Hao Shen, UW-Madison

September 27, TBA

October 4, Elliot Paquette, OSU

October 11, Chris Janjigian, University of Utah

October 18-20, Midwest Probability Colloquium, No Seminar

October 25, TBA

November 1, TBA

November 8, TBA

November 15, TBA

November 22, Thanksgiving Break, No Seminar

November 29, TBA

December 6, TBA

Past Seminars