arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.06439math.GRmath.COmath.RA
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基扩张下幂零群和李环的准同构zeta函数

Pro-isomorphic zeta functions of nilpotent groups and Lie rings under base extension

Mark N. Berman, Itay Glazer, Michael M. Schein

摘要:

考虑群$Γ(\mathcal{O}_K)$的准同构zeta函数,其中$Γ$是定义在$\mathbb{Z}$上的幂幺群概型,且$K$在所有数域上变化.在一定的条件下,我们表明,这些功能有一个罚款欧拉分解的因素指标的素数$\mathfrak{p}$的$K$和仅依赖于结构的$Γ$,度$[K : \mathbb{Q}]$,和基数的剩余字段$\mathcal{O}_K / \mathfrak{p}$。我们证明了这些因子满足一定的一致合理性,并研究了它们对$[K : \mathbb{Q}]$的依赖性。给出了几类幂幺群的显式计算。这些包括一个显然新颖的身份涉及置换统计的超八面体群。

英文摘要:

We consider pro-isomorphic zeta functions of the groups $Γ(\mathcal{O}_K)$, where $Γ$ is a unipotent group scheme defined over $\mathbb{Z}$ and $K$ varies over all number fields. Under certain conditions, we show that these functions have a fine Euler decomposition with factors indexed by primes $\mathfrak{p}$ of $K$ and depending only on the structure of $Γ$, the degree $[K : \mathbb{Q}]$, and the cardinality of the residue field $\mathcal{O}_K / \mathfrak{p}$. We show that the factors satisfy a certain uniform rationality and study their dependence on $[K : \mathbb{Q}]$. Explicit computations are given for several families of unipotent groups. These include an apparently novel identity involving permutation statistics on the hyperoctahedral group.

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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