Upcoming talks

May 2nd

Speaker: Péter Pál Pach

Affiliation: Budapest University of Technology, Hungary

Title: Polynomials, rank and cap sets

Abstract: In this talk we will look at a variant of the polynomial method which was first used to prove that sets avoiding 3-term arithmetic progressions in groups like Z_4^n and F_q^n are exponentially small (compared to the size of the group). We will discuss lower and upper bounds for the size of the extremal subsets. We will also mention some further applications of the method, for instance, the solution of the Erd\H{o}s-Szemer\’edi sunflower conjecture.

May 16th

No seminar: OCW

Past talks

Youtube playlist with all talks

80. Weichen Xie – Of Shadows and Gaps in Spatial Search

79. Mahsa N. Shirazi – On the eigenvalues of the perfect matching derangement graph

78. Victor Wang – Deletion-contraction for a unified Laplacian and applications

All talks


26th Ontario Combinatorics Workshop @ University of Waterloo, May 13 to 14, 2022

Prairie Discrete Math Workshop 2022 @ University of Regina, Online, June 9 to 10, 2022

Graph Theory, Algebraic Combinatorics and Mathematical Physics @ Université de Montréal, Hybrid, July 25 to August 19, 2022