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.

このセミナーはzoomで行われます。zoom URLは

https://kyoto-u-edu.zoom.us/j/87606635344

でパスコードは$E_6$型Weyl群の位数です。