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arXiv 1606.00293math.DSmath.PR
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非阿基米德局部域上无限skew-symmetric matrices上的遍历测度

Ergodic measures on infinite skew-symmetric matrices over non-Archimedean local fields

Yanqi Qiu

摘要:

设$F$是一个非离散的非阿基米德局部紧域,使得特征$\mathrm{ch}(F)\ne 2$和$\mathcal{O}_F$是$F$中的整数环.本文的主要结果是关于群$\mathrm{GL}(\infty,\mathcal{O}_F)$的自然作用的无穷反对称矩阵空间$\mathrm{Skew}(\mathbb{N}, F)$上遍历概率测度的分类定理1.2和定理1.4,这给出了$\mathrm{Sym}(\mathbb{N}, F)$上的$\mathrm{GL}(\infty,\mathcal{O}_F)$不变Borel概率测度的集合与$\mathrm{GL}(\infty,\mathcal{O}_F) \times \mathrm{GL}(\infty,\mathcal{O}_F)$的集合之间的意想不到的自然对应。在$F$上无限矩阵空间$\mathrm{Mat}(\mathbb{N}, F)$上的不变Borel概率测度.

英文摘要:

Let $F$ be a non-discrete non-Archimedean locally compact field such that the characteristic $\mathrm{ch}(F)\ne 2$ and let $\mathcal{O}_F$ be the ring of integers in $F$. The main results of this paper are Theorem 1.2 that classifies ergodic probability measures on the space $\mathrm{Skew}(\mathbb{N}, F)$ of infinite skew-symmetric matrices with respect to the natural action of the group $\mathrm{GL}(\infty,\mathcal{O}_F)$ and Theorem 1.4, that gives an unexpected natural correspondence between the set of $\mathrm{GL}(\infty,\mathcal{O}_F)$-invariant Borel probability measures on $\mathrm{Sym}(\mathbb{N}, F)$ with the set of $\mathrm{GL}(\infty,\mathcal{O}_F) \times \mathrm{GL}(\infty,\mathcal{O}_F)$-invariant Borel probability measures on the space $\mathrm{Mat}(\mathbb{N}, F)$ of infinite matrices over $F$.

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