Department of

Mathematics


Seminar Calendar
for events the day of Wednesday, April 1, 2020.

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More information on this calendar program is available.
Questions regarding events or the calendar should be directed to Tori Corkery.
      March 2020             April 2020              May 2020      
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  1  2  3  4  5  6  7             1  2  3  4                   1  2
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Wednesday, April 1, 2020

3:30 pm in https://illinois.zoom.us/j/806582029 (email Anush Tserunyan for the password),Wednesday, April 1, 2020

Random walks on graphs and spectral radius: part 2

Anush Tserunyan (UIUC Math)

Abstract: We will continue discussing random walks on graphs and their spectral radius, computing that the spectral radius of $\mathbb{Z}^d$ is $1$, whereas it is less than $1$ for a $d$-regular tree with $d \ge 3$. We will then discuss the deep and general theorem of Kesten characterizing amenable normal subgroups and derive a couple of striking corollaries: a characterization of finitely generated amenable groups and a rigidity result for the free groups.

4:00 pm in 245 Altgeld Hall,Wednesday, April 1, 2020

A family of number-theoretic directed graphs on the integers

Dana Neidinger

11:00 pm in Altgeld Hall,Wednesday, April 1, 2020

Meeting with Jamie Sikora

Jamie Sikora

Abstract: Instead of lunch with the candidate, we invite for questions and answers, and comments. https://illinois.zoom.us/j/566300666