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arXiv 0910.3199math.RT
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闭局部域上的球偶

Spherical Pairs Over Close Local Fields

Avraham Aizenbud, Nir Avni, Dmitry Gourevitch

摘要:

将Kazhdan的结果推广到相应的情形,我们将球面空间G(F)/H(F)(其中F是正特征域)上的调和分析与球面空间G(E)/H(E)(其中E是适当选取的特征为0的域)上的调和分析联系起来.证明的要素之一是Hecke代数上某些模有限生成的条件。我们应用我们的结果证明了对(GL_{n+1},GL_n)对所有的局部域都是强Gelfand对,对(GL_{n+k},GL_n x GL_k)对所有的奇特征的局部域都是Gelfand对.

英文摘要:

Extending results of Kazhdan to the relative case, we relate harmonic analysis over some spherical spaces G(F)/H(F), where F is a field of positive characteristic, to harmonic analysis over the spherical spaces G(E)/H(E), where E is a suitably chosen field of characteristic 0. One of the Ingredients of the proof is a condition for finite generation of some modules over the Hecke algebra. We apply our results to show that the pair (GL_{n+1},GL_n) is a strong Gelfand pair for all local fields, and that the pair (GL_{n+k},GL_n x GL_k) is a Gelfand pair for all local fields of odd characteristic.

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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