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arXiv:math/0610839 [math.RT]AbstractReferencesReviewsResources

Alcove walks and nearby cycles on affine flag manifolds

Ulrich Goertz

Published 2006-10-27Version 1

Using Ram's theory of alcove walks, we give a proof of the Bernstein presentation of the affine Hecke algebra. The method works also in the case of unequal parameters. We also discuss how these results help in studying sheaves of nearby cycles on affine flag manifolds.

Categories: math.RT, math.AG
Subjects: 20C08
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