On finite groups with given $IC\Phi$-subgroups

Abstract

A subgroup $H$ of a group $G$ is said to be an $IC\Phi$-subgroup of $G$ if $H\cap [H,G]\le \Phi (H)$. We analyze the structure of a finite group $G$ under the assumption that some given subgroups of $G$ are $IC\Phi$-subgroups of $G$. A new characterization of finite abelian groups and some new criteria for $2$-nilpotence and nilpotence of finite groups will be obtained. Moreover, we will obtain two criteria for a finite group to lie in a given solvably saturated formation containing the class of finite supersolvable groups.

10 pages