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Bibliographic Details
Main Authors: Grinberg, Mikhail, Vilonen, Kari, Xue, Ting
Format: Preprint
Published: 2020
Subjects:
Online Access:https://arxiv.org/abs/2012.14522
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Table of Contents:
  • Let G|V, G connected, reductive over C, be a stable polar representation in the sense of [DK], satisfying some mild additional hypotheses. Given a G-equivariant rank one local system L on the general fiber of the quotient map f : V --> V/G, we compute the Fourier transform of the corresponding nearby cycle sheaf P on the zero-fiber of f. This provides a partial generalization of the results of [Gr1] and [GVX1]. Our main intended application is to the theory of character sheaves for graded Lie algebras over C.