中文

有限几乎单群的小指数极大子群

群论 2022-10-25 v2

摘要

我们在本文中证明,以非交换单群 SS 为基柱的有限几乎单群 RR 拥有一类无核极大子群的共轭类,其指数等于 SS 的极大子群最小指数 l(S)\operatorname{l}(S),或拥有一类固定指数 vSl(S)2v_S \leq {\operatorname{l}(S)^2} 的无核极大子群共轭类,其中 vSv_S 仅依赖于 SS。我们证明 SS 的外自同构群的子群个数以 log3l(S)\log^3 {\operatorname{l}(S)} 为界,且 l(S)2<S\operatorname{l}(S)^2 < |S|

关键词

引用

@article{arxiv.2203.16976,
  title  = {Maximal subgroups of small index of finite almost simple groups},
  author = {A. Ballester-Bolinches and R. Esteban-Romero and P. Jiménez-Seral},
  journal= {arXiv preprint arXiv:2203.16976},
  year   = {2022}
}

备注

20 pages There is a change in the title with respect to the first draft. This paper has been published under an open access license thanks to the CRUE-CSIC agreement with Springer Nature