05C50 Online

05C50 Online is a biweekly virtual seminar about graphs and matrices held on a Friday, 10AM Central Time via Zoom. This is organized by Stephen Kirkland (University of Manitoba), Hermie Monterde (University of Regina) and Homer de Vera (University of Manitoba). Kindly fill out THIS FORM to subscribe to our mailing list!

Sep 25, 10am CT

Speaker: Luiz Emilio Allem

Affiliation: Universidade Federal do Rio Grande do Sul, Brazil

Title: q(G) for Threshold Graphs

Abstract: We study the minimum number of distinct eigenvalues q(G) of threshold graphs. It is known that every threshold graph satisfies q(G) at most 4, which suggests that a complete combinatorial characterization according to the values q(G) = 2, 3, 4 is possible.

In this talk, we present ongoing results toward such a characterization.

Preprint  |  This talk will be recorded  |  Slides will be shared

Oct 9, 10am CT

Speaker: Roghayeh Maleki

Affiliation: University of Regina, Canada

Title: TBA

Abstract: TBA

No preprint  |  This talk will be recorded  |  Slides will be shared

For titles and abstracts of previous talks, and links to recordings, please visit here .

Please contact Hermie Monterde  if you have inquiries about the seminar.