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Tutte Colloquium - Gabriel CoutinhoExport this event to calendar

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. Nevertheless, it seems that one cannot stop to find questions to ask, and many interesting results have appeared recently. In this talk, I will survey few of my favourite old and new results, highlighting connections to semidefinite programming and quantum information theory. I will also present three results, each relating to a different type of question about the topic, and then I will discuss some of the things I have been speculating lately.

Location 
MC - Mathematics & Computer Building
5501
200 University Avenue West

Waterloo, ON N2L 3G1
Canada

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