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Combinatorics & Optimization
University of Waterloo
Waterloo, Ontario
Canada N2L 3G1
Phone: 519-888-4567, ext 33038
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Title: 2-approximation of chromatic number on graph classes excluding a minor
Speaker: Rose McCarty Affiliation: University of Waterloo Room: MC 5479Abstract: In this talk we will see a 2-approximation of the chromatic number of graphs excluding a fixed minor.
Title: Eigenvalue bounds to the (co)clique and chromatic numbers
Speaker: Gabriel Coutinho Affiliation: Federal University of Minas Gerais, Brazil Room: MC 5501Abstract:
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.
Combinatorics & Optimization
University of Waterloo
Waterloo, Ontario
Canada N2L 3G1
Phone: 519-888-4567, ext 33038
PDF files require Adobe Acrobat Reader.
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.