In this talk I will discuss work (joint with J. Hong) on the T-fixed subscheme of twisted affine Schubert varieties. This may be viewed as an extension of results of Zhu in the untwisted case. I will discuss the Frenkel-Kac-Segal isomorphism, as well as Zhu’s geometrization of this result. An application of this work is the determination of the smooth locus of twisted affine Schubert varieties.

This video is part of the University of Georgia‘s Algebra seminar.