Upcoming talks
September 28th
Speaker: Soffia Arnadottir
Affiliation: University of Waterloo
Title: Strongly cospectral vertices, Cayley graphs and other things
Abstract: In this talk we will look at a connection between the number of pairwise strongly cospectral vertices in a translation graph (a Cayley graph of an abelian group) and the multiplicities of its eigenvalues. We will use this connection to give an upper bound on the number of pairwise strongly cospectral vertices in cubelike graphs.
October 5th
Speaker: Brendan Rooney
October 12th
No seminar. Happy Thanksgiving!
October 19th
Speaker: Christopher van Bommel
Youtube playlist with all talks
Previous talks
12. Paul Terwilliger – Leonard pairs, spin models, and distance-regular graphs.
11. Andriaherimanana Sarobidy Razafimahatratra – 2-intersecting families of permutations.
Viw the slides for the talk here.
Mahsa Nasrollahi Shirazi – Erdös-Ko-Rado theorem for 2-intersecting families of perfect matchings
Viw the slides for the talk here.
10. Eric Moorhouse – Projective Planes, Finite and Infinite
View slides for this talk here.
9. William J. Martin – Scaffolds
View slides for this talk here.
8. Bobae Johnson, August Liu, Malena Schmidt & Neo Yin – Laplacian Quantum Fractional Revival On Graphs
View slides for this talk here.
7. Gabriel Coutinho – State transfer and the size of the graph
View slides for this talk here.
6. David Roberson – What do graph planarity and homomorphism counts have to do with quantum mechanics?
View slides for this talk here.
Watch this talk here.
5. Harmony Zhan – Decomposing discrete quantum walks into continuous quantum walks
View slides for this talk here.
Watch this talk here.
4. Chris Godsil – Continuous Quantum Walks on Graphs
View slides for this talk here.
Watch this talk here.
3. Karen Meagher – Group Theory and the Erdős-Ko-Rado (EKR) Theorem
Watch this talk here.
2. Sebi Cioaba – Flip graph on perfect matchings of complete graphs and sign reversal graphs
Watch this talk here.
1. Max Levit – A covering graph perspective on Huang’s theorem
View slides for this talk here.
Watch this talk here.