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arXiv 1301.5166math.GR
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关于有限几乎单群和本原置换群元素的最大阶

On the maximum orders of elements of finite almost simple groups and primitive permutation groups

Simon Guest, Joy Morris, Cheryl Praeger, Pablo Spiga

摘要:

本文根据T的一个极大子群的最小指数m(T),确定了具有柱脚T的有限几乎单群的元素的最大阶的上界:对于T不是交错群,我们证明了,除了许多例外,最大元素阶至多为m(T)。此外,除了明确的群列表之外,该界可以减少到m(T)/4。这些结果被应用到确定所有原始置换群的大小为n的一组包含置换的顺序大于或等于n/4。

英文摘要:

We determine upper bounds for the maximum order of an element of a finite almost simple group with socle T in terms of the minimum index m(T) of a maximal subgroup of T: for T not an alternating group we prove that, with finitely many exceptions, the maximum element order is at most m(T). Moreover, apart from an explicit list of groups, the bound can be reduced to m(T)/4. These results are applied to determine all primitive permutation groups on a set of size n that contain permutations of order greater than or equal to n/4.

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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