International Journal of Mathematics and Mathematical Sciences
Volume 20 (1997), Issue 2, Pages 393-395
doi:10.1155/S0161171297000501
Abstract
Let G be a finite group and H be an operator group of G. In this short
note, we show a relationship between subnormal subgroup chains and H-invariant subgroup
chains. We remark that the structure of H is quite restricted when G has a special H-invariant
subgroup chain.