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arXiv 0708.0934math.QAmath.CA
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广义Cherednik-Macdonald恒等式

Generalized Cherednik-Macdonald identities

Jasper V. Stokman

摘要:

我们推导出与根系相关的Cherednik-Macdonald常数项恒等式的推广,这些恒等式除了依赖于通常的多重性函数外,还对称地依赖于两个准周期。它们是Cherednik-Macdonald常数项q恒等式的自然类似物,其中变形参数q被允许具有模1。他们统一的Cherednik-Macdonald常数项q-身份密切相关的杰克逊p-积分的身份,由于麦克唐纳,其中的变形参数p与q的模反演。

英文摘要:

We derive generalizations of the Cherednik-Macdonald constant term identities associated to root systems which depend, besides on the usual multiplicity function, symmetrically on two quasi-periods. They are natural analogues of the Cherednik-Macdonald constant term q-identities in which the deformation parameter q is allowed to have modulus one. They unite the Cherednik-Macdonald constant term q-identities with closely related Jackson p-integral identities due to Macdonald, where the deformation parameter p is related to q by modular inversion.

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