Algebraic and Enumerative Combinatorics Seminar - Kartik Singh

Title: Closure of Deodhar components

There will be a pre-seminar presenting relevant background at the beginning graduate level starting at 1pm.

Abstract: Deodhar decomposition of the Grassmannian is finest decomposition (that we know of) for which the components are homeomorphic to affine spaces. So, it's natural to be interested in their topology. In the talk we will try to describe a combinatorial rule that can possibly describe the closure of Deodhar decomposition. This work is joint with Olya Mandelshtam and Kevin Purbhoo.