Contact Info
Combinatorics & Optimization
University of Waterloo
Waterloo, Ontario
Canada N2L 3G1
Phone: 519-888-4567, ext 33038
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Thursday, March 5, 2020 1:00 PM EST
Title: Strongly cospectral vertices in cubelike graphs
Speaker: Soffia Arnadottir Affiliation: University of Waterloo Room: MC 5417Abstract:
A cubelike graph is a Cayley graph of the elementary abelian 2-group. Two vertices in a graph are strongly copsectral if they are cospectral and parallel.
Thursday, March 5, 2020 2:30 PM EST
Title: Combinatorial Hall algebras
Speaker: Matt Szczesny Affiliation: Boston University Room: MC 5417Abstract:
The Hall algebra of a finitary category is an associative (and sometimes Hopf) algebra whose structure constants count the number of extensions between objects.