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arXiv 1702.05784math.GR
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交错群的Sylow 2-子群的结构、极小生成集及其换位子群的性质

Structure and minimal generating sets of Sylow 2-subgroups of alternating groups, properties of its commutator subgroup

Ruslan Skuratovskii

摘要:

本文研究了${{A}_{n}}$和${{S}_{n}}$的Sylows p-子群,这一研究工作始于U. Dmitruk,V. Suschansky“对称交错群的2-sylow子群的结构”和R.~ Skuratovskii“群S_n的Sylow p-子群的余表示”\cite{Dm, Sk, Paw}的推广.设$Syl_2{A_{2^k}}$和$Syl_2{A_{n}}$是相应的交错群$A_{2^k}$和$A_{n}$的Sylow 2-子群.我们找到了这样的子群$Sy{{l}_{2}}{{A}_{{{2}^{k}}}}$和$Syl_2{A_{n}}$的最小生成集和结构以及$Syl_2{A_{2^k}}$ \cite{Mur}的换位子宽度. \cite{Dm, Paw}的作者没有证明对$A_n$的Sylow 2-子群的生成元系的极小性,只是初步建立了生成元系的结构。本文研究了Sylow 2-子群的结构,并构造了这类子群的极小生成系。换句话说,问题不仅仅是证明$2^k $次交错群的Sylow 2-子群的元素生成集的存在性和证明其极小性。主要结果是证明了上述子群的生成集的极小性,并描述了它们的结构。

英文摘要:

In this article the investigation of Sylows p-subgroups of ${{A}_{n}}$ and ${{S}_{n}}$, which was started in article of U. Dmitruk, V. Suschansky "Structure of 2-sylow subgroup of symmetric and alternating group" and article of R.~Skuratovskii "Corepresentation of a Sylow p-subgroup of a group S_n" \cite{Dm, Sk, Paw} is continued. Let $Syl_2{A_{2^k}}$ and $Syl_2{A_{n}}$ be Sylow 2-subgroups of corresponding alternating groups $A_{2^k}$ and $A_{n}$. We find a least generating set and a structure for such subgroups $Sy{{l}_{2}}{{A}_{{{2}^{k}}}}$ and $Syl_2{A_{n}}$ and commutator width of $Syl_2{A_{2^k}}$ \cite{Mur}. The authors of \cite{Dm, Paw} didn't proof minimality of finding by them system of generators for such Sylow 2-subgroups of $A_n$ and structure of it were founded only descriptively. The purpose of this paper is to research the structure of a Sylow 2-subgroups and to construct a minimal generating system for such subgroups. In other words, the problem is not simply in the proof of existence of a generating set with elements for the Sylow 2-subgroup of alternating group of degree $2^k $ and proof its minimality. The main result is the proof of minimality of this generating set of the above described subgroups and also the description of their structure.

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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