Sur une conjecture de Kottwitz au bord
Algebraic Geometry
2011-09-12 v3 Number Theory
Abstract
We are interested in the intersection cohomology of the minimal compactification of Siegel modular varieties at some places of bad reduction. We compute the semi-simple trace of the Frobenius morphism on the fibers of the nearby cycles of the intersection complex. We obtain a common generalization of results of Morel and Haines and Ngo.
Cite
@article{arxiv.1102.0429,
title = {Sur une conjecture de Kottwitz au bord},
author = {Benoit Stroh},
journal= {arXiv preprint arXiv:1102.0429},
year = {2011}
}