Qëndrim R. Gashi (Univ. Prishtina / Univ. Maryland) | 2025-01-16 at Drexel University, Korman Center, Room 245, at 3:30-4:30 PM
Abstract: Strongly orthogonal roots first appeared in the works of Harish-Chandra and Kostant. We will discuss a surprising relationship between existence problems in finite geometries, existence of certain maximal cliques of sets of strongly orthogonal roots, and classical results from extremal combinatorics.