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arXiv 0810.1814math.NT
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关于GL_n(F)中某些子群的上同调Hecke特征值系

On systems of Hecke eigenvalues in cohomology of certain subgroups of GL_n(F)

Morten S. Larsen

摘要:

本文证明了在广义双陪集代数中,作为元素的Hecke算子的GL_n(F)的某些子群所对应的上同调群上存在自然作用.我们的主要结果是:如果Hecke算子的特征值系出现在系数在某个模中的上同调群中,那么通过改变群,该特征值系也出现在系数在一维模中的上同调群中.

英文摘要:

We show how there is a natural action on the cohomology groups attached to certain subgroups of GL_n(F) of the Hecke operators defined as elements in an adelic double coset algebra. Our main result is, that if a system of eigenvalues for Hecke operators occur in the cohomology groups with coefficients in certain modules, then by changing the groups the system also occur in the cohomology groups with coefficients in a 1-dimensional module.

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