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arXiv 1206.3589math.RTmath.NT
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关于Weil表示的格模型和Howe对偶猜想

On the lattice model of the Weil representation and the Howe duality conjecture

Shuichiro Takeda

摘要:

剩余特征为奇数的非阿基米德局部域$F$上的Weil表示的格模型已经被人们所熟知了几十年,并且被用来证明当$F$的剩余特征为奇数时非分歧对偶对的Howe对偶猜想.在本文中,我们将修改韦伊表示的格模型,使其独立于剩余特征的定义。虽然仅仅定义格模型不足以证明偶剩余特征的Howe对偶猜想,但我们将提出几个包含偶剩余特征的非分歧对偶对的Howe对偶猜想的结构引理。我们也将给出这些引理的证明,在某些情况下,这使我们能够证明(一个版本)的豪威对偶猜想的偶剩余特征的某一类表示的对偶对$({\rm O}(2n), {\rm Sp}(2n))$,其中${\rm O}(2n)$是unramified。我们希望这篇文章可以作为证明偶剩余特征的Howe对偶猜想的第一步。

英文摘要:

The lattice model of the Weil representation over non-archimedean local field $F$ of odd residual characteristic has been known for decades, and is used to prove the Howe duality conjecture for unramified dual pairs when the residue characteristic of $F$ is odd. In this paper, we will modify the lattice model of the Weil representation so that it is defined independently of the residue characteristic. Although to define the lattice model alone is not enough to prove the Howe duality conjecture for even residual characteristic, we will propose a couple of conjectural lemmas which imply the Howe duality conjecture for unramified dual pairs for even residual characteristic. Also we will give a proof of those lemmas for certain cases, which allow us to prove (a version of) the Howe duality conjecture for even residual characteristic for a certain class of representations for the dual pair $({\rm O}(2n), {\rm Sp}(2n))$, where ${\rm O}(2n)$ is unramified. We hope this paper serves as a first step toward a proof of the Howe duality conjecture for even residual characteristic.

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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