Jakub Löwit

Equivariant $K$-theory ring of the affine Grassmannian as deformation to normal cone

We revisit fixed-point localization techniques in equivariant topological $K$-theory, presenting its fibers over varying points of the equivariant base as cohomology of the corresponding fixed-point schemes. We then employ this framework for an effective description of the equivariant $K$-theory ring of the affine Gras...