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The University of Waterloo is constantly updating our most Frequently Asked Questions.

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Please note: The University of Waterloo is closed for all events until further notice.

Events

Thursday, February 13, 2020

Thursday, February 13, 2020 — 1:00 PM EST

Title: Moore Graphs

Speaker: Chris Godsil Affiliation: University of Waterloo Room: MC 5417

Abstract:

Moore graphs were introduced by Hoffman and Singleton in a fundamental paper. They can be defined as graphs with diameter $d$ and girth $2d+1$.

Thursday, February 13, 2020 — 2:30 PM EST

Title: A generalization of balanced tableaux and matching problems with unique solutions

Speaker: Brian Chan Affiliation: University of British Columbia Room: MC 5417

Abstract:

In this talk, we consider families of finite sets that we call shellable and that have been characterized by Chang and Hirst and Hughes as being the families of sets that admit unique solutions to Hall's matching problem.

Thursday, February 13, 2020 — 4:00 PM EST

Title: List Colouring and Ohba's Conjecture

Speaker: Matt Kroeker Affiliation: University of Waterloo Room: MC 5479

Abstract:

The question of when the list-chromatic number of a graph G, denoted chi_l(G), equals its chromatic number is fundamental to the theory of list colouring.

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