On 2-maximal subgroups of finite groups

On some second maximal subgroups of non-solvable groups

“…All groups considered in this paper will be finite. Our terminology and notation are standard and can be found in [4,7,12]. For every p ∈ π(G), |G| p denotes the p-part of |G| and G ′ denotes the derived subgroup of G. We write M G to express that M is a maximal subgroup of G. M ax(G, H) denotes the set of all maximal subgroups M of G such that H ≤ M .…”