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

Events by date

Friday, February 1, 2019

Friday, February 1, 2019 — 1:00 PM EST

Title: 2-approximation of chromatic number on graph classes excluding a minor

Speaker: Rose McCarty Affiliation: University of Waterloo Room: MC 5479

Abstract: In this talk we will see a 2-approximation of the chromatic number of graphs excluding a fixed minor.

Friday, February 1, 2019 — 3:30 PM EST

Title: Eigenvalue bounds to the (co)clique and chromatic numbers

Speaker: Gabriel Coutinho Affiliation: Federal University of Minas Gerais, Brazil Room: MC 5501

Abstract:

This is perhaps one of the oldest topics of interest in spectral graph theory, dating back to the works of Hoffman, Haemers, Delsarte and others, in the 70s.

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