Changwen Li
On weakly $s$-permutably embedded subgroups

Comment.Math.Univ.Carolin. 52,1 (2011) 21-29.

Abstract:Suppose $G$ is a finite group and $H$ is a subgroup of $G$. $H$ is said to be $s$-permutably embedded in $G$ if for each prime $p$ dividing $|H|$, a Sylow $p$-subgroup of $H$ is also a Sylow $p$-subgroup of some $s$-permutable subgroup of $G$; $H$ is called weakly $s$-permutably embedded in $G$ if there are a subnormal subgroup $T$ of $G$ and an $s$-permutably embedded subgroup $H_{se}$ of $G$ contained in $H$ such that $G=HT$ and $H\cap T\leq H_{se}$. We investigate the influence of weakly $s$-permutably embedded subgroups on the $p$-nilpotency and $p$-supersolvability of finite groups.

Keywords: weakly $s$-permutably embedded subgroups, $p$-nilpotent, $n$-maximal subgroup
AMS Subject Classification: 20D10 20D20