Events by date

Title: Cliques in dense matroids

Speaker: Fernanda Rivera Affiliation: University of Waterloo Location: MC 6029

Abstract: We will give a singly exponential bound on the number of points a $U_{2,q+2}$-minor-free matroid can have without containing $M(K_{q+2})$ as a minor.

Title: Equiangular lines and algebraic number theory

Speaker: Ingemar Bengtsson Affiliation: Stockholm University Location: contact Sabrina Lato for Zoom link

Abstract: It is believed that SICs, that is maximal equiangular tight frames, exist in all complex vector spaces. To construct them we use the Weyl-Heisenberg groups, and hence the cyclotomic numbers (roots of unity).