Formulae relating the Bernstein and Iwah
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Thomas J. Haines; Alexandra Pettet
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Article
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2002
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Elsevier Science
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English
⚖ 193 KB
We consider the "anti-dominant" variants Θ - λ of the elements Θ λ occurring in the Bernstein presentation of an affine Hecke algebra H. We find explicit formulae for Θ - λ in terms of the Iwahori-Matsumoto generators T w (w ranging over the extended affine Weyl group of the root system R), in the c