Wikipedia / Semipermutable subgroup
Wikipedia / Semipermutable subgroup
In mathematics, in algebra, in the realm of group theory, a subgroup of a finite group is said to be semipermutable.
Clearly, every permutable subgroup of a finite group is semipermutable. The converse, however, is not necessarily true.
External links
The Influence of semipermutable subgroups on the structure of finite groups