Invariant Differential Operators for Quantum Symmetric Spaces(Memoirs of the American Mathematical Society)

不变微分算子的量子对称空间

代数学

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作      者
出版时间
2008年04月30日
装      帧
平装
ISBN
9780821841310
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页      码
90
开      本
26 cm.
语      种
英文
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图书简介
This paper studies quantum invariant differential operators for quantum symmetric spaces in the maximally split case. The main results are quantum versions of theorems of Harish-Chandra and Helgason: There is a Harish-Chandra map which induces an isomorphism between the ring of quantum invariant differential operators and the ring of invariants of a certain Laurent polynomial ring under an action of the restricted Weyl group. Moreover, the image of the center under this map is the entire invariant ring if and only if the underlying irreducible symmetric pair is not of four exceptional types. In the process, the author finds a particularly nice basis for the quantum invariant differential operators that provides a new interpretation of difference operators associated to Macdonald polynomials.
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