Thursday, October 3, 2019

Thursday, October 3, 2019 1:00 PM EDT

Title: Type II Matrices

Speaker: Ada Chan Affiliation: York University Room: MC 5479

Abstract:

   In 1867,  Sylvester defined an {\sl inverse orthogonal matrix} as an $n\times n$ complex matrix $W$ satisfying

Thursday, October 3, 2019 3:00 PM EDT

Title: Discrete diffusion on graphs and real hyperplane arrangements

Speaker: David Wagner Affiliation: University of Waterloo Room: MC 6483

Abstract:

In 2016, Duffy et al. introduced the following process on a graph.  Initially, each vertex has some integer number of ``chips'' placed there (possibly negative). 

Thursday, October 3, 2019 4:00 PM EDT

Title: 

Speaker: Lise Turner Affiliation: University of Waterloo Room: MC 5501

Abstract:

There are several different notions of what it means for a graph to converge. One popular notion for sparse graphs is Benjamini-Schramm convergence which focuses on local properties of the graphs.

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