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arXiv 2104.01510math.RT
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将容许表示限制于不动点子群

Restricting admissible representations to fixed-point subgroups

Peter Latham, Monica Nevins

摘要:

给定一个$p$群$G$,它具有一个有限群$Γ\subset\mathrm{Aut}_F(\mathbf{G})$的作用和一个约化不动点子群$G^Γ$,我们建立了Yu,Kim-Yu和Fintzen关于这两个群的类型构造之间的关系,并推广了Stevens观察到的一般线性群和典型群之间的关系.作为一个应用程序,给定一个抛物线诱导或超尖点表示$π$的$G$,我们明确确定了一些惯性等价类发生在表示$π|_{G^{[Γ]}}$。

英文摘要:

Given a $p$-adic group $G$ equipped with an action of a finite group $Γ\subset\mathrm{Aut}_F(\mathbf{G})$, and a reductive fixed-point subgroup $G^Γ$, we establish a relationship between constructions of types for these two groups due to Yu, Kim--Yu and Fintzen, and generalizes the relationship between general linear and classical groups observed by Stevens. As an application, given a parabolically induced or supercuspidal representation $π$ of $G$, we explicitly identify a number of the inertial equivalence classes occurring in the representation $π|_{G^{[Γ]}}$.

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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