FINITE GROUPS ALL OF WHOSE SECOND MAXIMAL SUBGROUPS ARE
-GROUPS
Abstract
Let G be a finite group. A subgroup H of G is called weakly normal in G if Hg ≤ NG(H) implies g ∈ NG(H) for all g ∈ G. A finite group G is called an -group if all cyclic subgroups of G of order prime or 4 are weakly normal in G. In this paper, the structure of finite groups all of whose second maximal subgroups satisfy
-property has been characterized.