The semi-infinite intersection cohomology sheaf
Algebraic Geometry
2021-11-02 v6
Abstract
We introduce the semi-infinite category of sheaves on the affine Grassmannian, and construct a particular object in it, which we call the the semi-infinite intersection cohomology sheaf. We relate it to several other entities naturally appearing in the geometric Langlands theory.
Cite
@article{arxiv.1703.04199,
title = {The semi-infinite intersection cohomology sheaf},
author = {Dennis Gaitsgory},
journal= {arXiv preprint arXiv:1703.04199},
year = {2021}
}