Legchekova, H.V.
(Algebra and Discrete Mathematics, 2005)
Let A, B be subgroups of a group G and ∅ 6= X ⊆
G. A subgroup A is said to be X-permutable with B if for some
x ∈ X we have ABx = BxA [1]. We obtain some new criterions
for supersolubility of a finite group G = AB, where ...