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arXiv 1010.4897math.NTmath.RT
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稳定迹公式与离散级数表示

Stable Trace Formulas and Discrete Series Representations

Steven Spallone

摘要:

设G是环Q上的约化代数群,Gamma是G(R)的一个由同余条件定义的算术子群.算术中的一个基本问题是确定L^2(Gamma \ G(R))中离散级数表示的重数,以及一般地确定Hecke算子在这些空间上的迹。本文给出了Hecke算子的迹在稳定分布下的一个表达式。它是基于亚瑟的L^2-莱夫谢茨数公式的稳定版本,这是由于科特维茨。我们把这个公式归结为椭圆p-adic轨道积分的计算和内窥镜转移理论。作为这个猜想的证据,我们证明了在G=GSp_4和Gamma=GSp_4(Z)的情形下,这个公式的中心项与由Wakatsuki计算的Selberg迹公式对多重数的幂幺贡献是一致的。

英文摘要:

Let G be a reductive algebraic group over Q, and suppose that Gamma is an arithmetic subgroup of G(R) defined by congruence conditions. A basic problem in arithmetic is to determine the multiplicities of discrete series representations in L^2(Gamma \ G(R)), and in general to determine the traces of Hecke operators on these spaces. In this paper we give a conjectural formula for the traces of Hecke operators, in terms of stable distributions. It is based on a stable version of Arthur's formula for L^2-Lefschetz numbers, which is due to Kottwitz. We reduce this formula to the computation of elliptic p-adic orbital integrals and the theory of endoscopic transfer. As evidence for this conjecture, we demonstrate the agreement of the central terms of this formula with the unipotent contributions to the multiplicity coming from Selberg's trace formula computed by Wakatsuki, in the case G=GSp_4 and Gamma=GSp_4(Z).

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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