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arXiv · 1909.01850

Multiplicities under basechange: finite field case

Dipendra Prasad
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Abstract

A general proposition is proved relating multiplicities (of restriction of a representation of a group to a subgroup) under basechange, and used to calculate some multiplicities for cuspidal representations which become principal series representations under basechange for which multiplicities can be calculated by geometric methods.

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Dipendra Prasad. 2019-09-04. Multiplicities under basechange: finite field case. https://arxiv.org/abs/1909.01850

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