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Published 2011 | Published
Book Section - Chapter Open

l-Adic Étale Cohomology of PEL Type Shimura Varieties with Non-Trivial Coefficients

Abstract

Given a Shimura datum (G, h) of PEL type, let p be an odd prime at which G is unramified. In [13], we established a formula computing the l-adic cohomology of the associated Shimura varieties (regarded as a representation of the acidic points of G and of the local Weil group at p) in terms of that of their local models at p (the associated Rapoport-Zink spaces) and of the corresponding Igusa varieties. In this paper we extend those results (which are for cohomology with constant l-adic coefficients) to the general case of coefficients in a lisse étale sheaf attached to a finite dimensional l-adic representation of the group G.

Additional Information

© 2011 American Mathematical Society. Partially supported by the National Science Foundation under Grant DMS-0701310. I would like to thank R. Taylor, M. Harris, and S.W. Shin for their interest in my work and for stimulating discussions, and the referee for helpful comments and useful suggestions.

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