The semi-infinite intersection cohomology sheaf

Published 12 Mar 2017 in math.AG | (1703.04199v6)

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.

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Authors (1)

Dennis Gaitsgory

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