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On critical conditions of overgroups of weak second maximal subgroups

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Abstract A subgroup H of a finite group G is called a weak second maximal subgroup of G if there exists a maximal subgroup M of G such that H… Click to show full abstract

Abstract A subgroup H of a finite group G is called a weak second maximal subgroup of G if there exists a maximal subgroup M of G such that H is a maximal subgroup of M. Let m(G, H) denote the number of maximal subgroups of G containing H. In this paper the classification of finite groups G is given if is solvable and H is a weak second maximal subgroup of G such that is equal to the index of some maximal subgroup of G, which make us understand the difference between the weak second maximal subgroups and the second maximal subgroups.

Keywords: maximal subgroups; maximal subgroup; second maximal; critical conditions; weak second

Journal Title: Communications in Algebra
Year Published: 2021

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