On the $ICSPC$-property of finite subgroups

Abstract

Let $G$ be a finite group and $H$ be a subgroup of $G$. Then $H$ is said to be a $p$-$CAP$-subgroup of $G$, if $H$ covers or avoids any $pd$-chief factor of $G$. Furthermore, $H$ is said to be a strong $p$-$CAP$-subgroup of $G$, if for any $H\le K\le G$, $H$ is a $p$-$CAP$-subgroup of $K$. A subgroup $L$ is called an $ICSPC$-subgroup of $G$, if $[L,G]\cap L\le L_{spcG}$, where $L_{spcG}$ denotes a strong $p$-$CAP$-subgroup of $G$ contained in $L$. In this paper, we investigate the structure of $G$ under the assumption that certain subgroups of $G$ are $ICSPC$-subgroups of $G$. Characterizations for $p$-nilpotency and solvably saturated formation are obtained. We also get several criteria for the structure of $G$ under the assumption that certain subgroups of $G$ are $ICSPC$-subgroups of $G$.