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arXiv 1209.3291math.RTmath-phmath.MP
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与Macdonald球函数相关的仿射Hecke代数的酉表示

Unitary representations of affine Hecke algebras related to Macdonald spherical functions

J. F. van Diejen, E. Emsiz

摘要:

对于任何约化的晶体学根系,我们引入了一个酉表示的(扩展)仿射Hecke代数的离散差分反射运营商在希尔伯特空间的复杂功能的重量格。它表明,该表示下的中心的作用是对角的麦克唐纳球函数的基础上。作为应用,我们计算这些球函数的显式Pieri公式。

英文摘要:

For any reduced crystallographic root system, we introduce a unitary representation of the (extended) affine Hecke algebra given by discrete difference-reflection operators acting in a Hilbert space of complex functions on the weight lattice. It is shown that the action of the center under this representation is diagonal on the basis of Macdonald spherical functions. As an application, we compute an explicit Pieri formula for these spherical functions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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