arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2101.09030math.GR
收藏

有限群中心化子的计数及其在构造可交换共轭类图中的应用

Counting Centralizers of a Finite Group with an Application in Constructing the Commuting Conjugacy Class Graph

A. R. Ashrafi, M. A. Salahshour

摘要:

有限群$G$中元素的所有中心化子的集合记为$Cent(G)$,如果$|Cent(G)| = n$,则称$G$为$n-$中心化子.本文给出了非交换有限群$G$的中心化子的结构,并证明了其性质为$\frac{G}{Z(G)} \cong Z_{p^2} \rtimes Z_{p^2}$.从而证明了这样的群恰有$[(p+1)^2+1]$元素中心化子,并完全确定了$G$的交换共轭类图的结构.

英文摘要:

The set of all centralizers of elements in a finite group $G$ is denoted by $Cent(G)$ and $G$ is called $n-$centralizer if $|Cent(G)| = n$. In this paper, the structure of centralizers in a non-abelian finite group $G$ with this property that $\frac{G}{Z(G)} \cong Z_{p^2} \rtimes Z_{p^2}$ is obtained. As a consequence, it is proved that such a group has exactly $[(p+1)^2+1]$ element centralizers and the structure of the commuting conjugacy class graph of $G$ is completely determined.

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。

↑