A Gauss-Bonnet theorem for constructible sheaves on reductive groups
Algebraic Geometry
2007-05-23 v1 Representation Theory
Abstract
We prove an analog of the Gauss-Bonnet formula for constructible sheaves on reductive groups. As a corollary from this formula we get that if a perverse sheaf on a reductive group is equivariant under the adjoint action, then its Euler characteristic is nonnegative.
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Cite
@article{arxiv.math/0205015,
title = {A Gauss-Bonnet theorem for constructible sheaves on reductive groups},
author = {Valentina Kiritchenko},
journal= {arXiv preprint arXiv:math/0205015},
year = {2007}
}
Comments
10 pages