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arXiv 2102.00694math.GR
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关于profinite多进群

On profinite polyadic groups

M. Shahryari, M. Rostami

摘要:

研究了profinite多进群的结构,证明了一个多进拓扑群$(G, f)$是profinite的当且仅当它是紧的,Hausdorff的,全不连通的.更一般地,对于有限群$\mathfrak{X}$的伪簇(或群系),我们定义了$\mathfrak{X}$ -多元群的类,并且我们证明了多元群$(G, f)$是pro- $\mathfrak{X}$,当且仅当它是紧的,Hausdorff的,全不连通的的,并且对于每个开同余$R$,商$(G/R, f_R)$是$\mathfrak{X}$ -多元的。

英文摘要:

We study the structure of profinite polyadic groups and we prove that a polyadic topological group $(G, f)$ is profinite, if and only if, it is compact, Hausdorff, totally disconnected. More generally, for a pseudo-variety (or a formation) of finite groups $\mathfrak{X}$, we define the class of $\mathfrak{X}$-polyadic groups, and we show that a polyadic group $(G, f)$ is pro-$\mathfrak{X}$, if and only if, it is compact, Hausdorff, totally disconnected and for every open congruence $R$, the quotient $(G/R, f_R)$ is $\mathfrak{X}$-polyadic.

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