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arXiv 1602.01758math.RTmath.NT
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p-adic群特征标的渐近性和局部恒定性

Asymptotics and local constancy of characters of p-adic groups

Ju-Lee Kim, Sug Woo Shin, Nicolas Templier

摘要:

本文研究了当表示$π$变化时,约化$p$ -进群的迹特征标$Θ_π$的定量问题.我们的方法是基于当地的字符的恒定性,我们调查其他一些相关的结果。我们提出了一个关于$Θ_π$相对于$π$的形式度的行为的猜想,在$π$是一个驯服的超尖点的情况下,我们能够证明这个猜想.证据建立在J上。K.~ Yu的构造与Moy-Prasad子群的结构

英文摘要:

In this paper we study quantitative aspects of trace characters $Θ_π$ of reductive $p$-adic groups when the representation $π$ varies. Our approach is based on the local constancy of characters and we survey some other related results. We formulate a conjecture on the behavior of $Θ_π$ relative to the formal degree of $π$, which we are able to prove in the case where $π$ is a tame supercuspidal. The proof builds on J.-K.~Yu's construction and the structure of Moy-Prasad subgroups.

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