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arXiv · 1601.07618

On the dependence of the local Rankin-Selberg gamma factors of $\textrm{Sp}_{2n}\times \textrm{GL}_m$ on $ψ$

Qing Zhang
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Abstract

Let $F$ be a $p$-adic field and $π$ be an irreducible smooth representation of $\textrm{Sp}_{2n}(F)$. In this paper, we show that if $π$ and $π^κ$ are both generic for a common generic character of the maximal unipotent of a fixed Borel, then $π\cong π^κ$, where $π^κ$ is the representation induced by the conjugation action of an element $κ\in \textrm{GSp}_{2n}(F)$. This result is a consequence of the standard local Langlands conjecture and local Gan-Gross-Prasad conjecture. As a consequence, we extend the dependence relation of the local Rankin-Selberg gamma factors for $\textrm{Sp}_{2n}\times \textrm{GL}_m$ on $ψ$ to the general case.

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Qing Zhang. 2017-01-18. On the dependence of the local Rankin-Selberg gamma factors of $\textrm{Sp}_{2n}\times \textrm{GL}_m$ on $ψ$. https://arxiv.org/abs/1601.07618

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