arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00200math.COmath.GR
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广义二面体CI-群

Generalised dihedral CI-groups

Ted Dobson, Mikhail Muzychuk, Pablo Spiga

摘要:

在本文中,我们发现了CI-群的结构的一个新的强限制。证明了:如果$R$是广义二面体群,且$R$是CI-群,则对每个奇素数$p$,$R$的Sylow $p$ -子群有阶$p$,或$9$ .因此,任何商为广义二面体群的CI-群都有相同的限制,即对于每个奇素数$p$,群的Sylow $p$ -子群有阶$p$,或$9$。我们还给出了一个反例来证明BCI-群是CI-群的猜想。

英文摘要:

In this paper, we find a strong new restriction on the structure of CI-groups. We show that, if $R$ is a generalised dihedral group and if $R$ is a CI-group, then for every odd prime $p$ the Sylow $p$-subgroup of $R$ has order $p$, or $9$. Consequently, any CI-group with quotient a generalised dihedral group has the same restriction, that for every odd prime $p$ the Sylow $p$-subgroup of the group has order $p$, or $9$. We also give a counter example to the conjecture that every BCI-group is a CI-group.

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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