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arXiv 1906.05901math.GR
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循环群的半直积的自同构群

Automorphism Groups for Semidirect Products of Cyclic Groups

Jasha Sommer-Simpson

摘要:

群$K\rtimes H$的每个半直积都有大小$\left | K \right | \cdot \left | H\right |$,然而这样一个群的自同构群的大小随着$H$在$K$上所选择的作用而变化。本文将探讨形式为$\text{Aut}(K\rtimes H)$的群,特别考虑$H$和$K$是循环的情况。只考虑有限群。

英文摘要:

Every semidirect product of groups $K\rtimes H$ has size $\left | K \right | \cdot \left | H\right |$, yet the size of such a group's automorphism group varies with the chosen action of $H$ on $K$. This paper will explore groups of the form $\text{Aut}(K\rtimes H)$, considering especially the case where $H$ and $K$ are cyclic. Only finite groups will be considered.

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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