Formulae relating the Bernstein and Iwahori-Matsumoto presentations of an affine Hecke algebra

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We give explicit formulae for certain elements occurring in the Bernstein presentation of an affine Hecke algebra, in terms of the usual Iwahori- Matsumoto generators. We utilize certain minimal expressions for said elements and we give a sheaf-theoretic interpretation for the existence of these minimal expressions.
To appear, J. of Algebra

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Representation Theory, 20C08 (Primary) 14M15 (Secondary)

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http://salesiana.dossiersoluciones.com/handle/123456789/63151

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0201176
 http://arxiv.org/abs/math/0201176

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arXiv