The T-equivariant Cohomology of Bott-Samelson varieties

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We consider the T-equivariant cohomology of Bott-Samelson desingularisations of Schubert varieties in the flag manifold of a connected semi-simple complex algebraic group of adjoint type with maximal torus T. We construct a combinatorially pure (in the sense of T. Braden and R. Macpherson) sheaf on the Bruhat graph of the associated Weyl group such that its global sections give the T-equivariant cohomology of our Bott-Samelson resolution.
17 pages

Keywords

Algebraic Geometry, Geometric Topology, 14M15; 55N91

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/73610

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0412337
 http://arxiv.org/abs/math/0412337

Collections

arXiv