On the intersection of maximal non-supersoluble subgroups in a finite group
Gli autori studiano il sottogruppo intersezione dei sottogruppi massimali e non supersolubili di un gruppo finito e le relazioni tra la struttura di e quella di .
On the intersection of subgroups of a free group.
On the inverse limit of free nilpotent groups.
On the isomorphism problem in the class of extensions of a free group by an infinite cyclic group.
On the largest conjugacy class size in a finite group
On the lattice automorphisms of certain simple algebraic groups
On the lattice of pronormal subgroups of dicyclic, alternating and symmetric groups
In this paper, the structures of collection of pronormal subgroups of dicyclic, symmetric and alternating groups are studied in respect of formation of lattices and sublattices of . It is proved that the collections of all pronormal subgroups of and S do not form sublattices of respective and , whereas the collection of all pronormal subgroups of a dicyclic group is a sublattice of . Furthermore, it is shown that and ) are lower semimodular lattices.
On the Maximality of the Orthogonal Groups in the Symplectic Groups in Characteristic Two.
On the maximum and minimum chain conditions for the "largeness" ordering on the class of groups.
On the multiplicative subgroup of a group ring
On the Nielsen Method in Free Products with Amalgamated Subgroups.
On the number of maximal theta pairs in a finite group
On the number of subgroups of given index in the modular group.
On the -supersolubility of a finite group with a -supplemented Sylow -subgroup.
On the power-commutative kernel of locally nilpotent groups.
On the product formula in Galois groups.
On the squares of sets of linear groups
On the SQ-universality of T(6)-groups.
On the stability of subgroup actions on certain quasihomogeneous -varieties.
On the Steinberg Characters of Finite Chevalley Groups.