Sel’kin V. M.
Ukr. Mat. Zh. - 2002. - 54, № 7. - pp. 950-960
We consider solvable invariant subgroups of a finite group with bounded primary indices of maximal subgroups. We establish that an invariant subgroup of this type belongs to the product of classical formations and investigate its dispersibility.
Ukr. Mat. Zh. - 2002. - 54, № 3. - pp. 373-380
We describe minimal hereditary ω-local non-ℌ-formations, where ℌ is a formation of the classical type.