Equations for affine Grassmannians and their Schubert varieties

2020/11/26 Thu 10:30 - 12:00
Dinakar Muthiah
Kavli IPMU

I will discuss work on a conjectural moduli description of Schubert varieties in the affine Grassmannian and proof of a conjecture of Kreiman, Lakshmibai, Magyar, and Weyman on equations defining type A affine Grassmannians. As an application of our ideas, we prove a conjecture of Pappas and Rapoport about nilpotent orbit closures. This involves work with Joel Kamnitzer, Alex Weekes, and Oded Yacobi.

This will be a zoom seminar. The zoom URL is


and the passcode is the order of the Weyl group of type $E_6$.