2019
Том 71
№ 5

# Q -permutable subgroups of finite groups

Abstract

A subgroup $H$ of a group $G$ is called $Q$-permutable in $G$ if there exists a subgroup $B$ of $G$ such that (1) $G = HB$ and (2) if $H_1$ is a maximal subgroup of $H$ containing $H_{QG}$, then $H_1B = BH_1 < G$, where $H_{QG}$ is the largest permutable subgroup of $G$ contained in $H$. In this paper we prove that: Let $F$ be a saturated formation containing $U$ and $G$ be a group with a normal subgroup $H$ such that $G/H \in F$. If every maximal subgroup of every noncyclic Sylow subgroup of $F∗(H)$ having no supersolvable supplement in $G$ is $Q$-permutable in $G$, then $G \in F$.

English version (Springer): Ukrainian Mathematical Journal 63 (2011), no. 11, pp 1745-1755.

Citation Example: Miao L., Pu Zh. Q -permutable subgroups of finite groups // Ukr. Mat. Zh. - 2011. - 63, № 11. - pp. 1534-1543.

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