On a free action of a group on an Abelian group.
On a group acting locally freely on an Abelian group.
On a question of Deaconescu about automorphisms
On a question of Deaconescu about automorphisms. - III
On automorphisms fixing subnormal subgroups of soluble groups
The group of all automorphisms leaving invariant every subnormal subgroup of the group is studied. In particular it is proved that is metabelian if is soluble, and that is either finite or abelian if is polycyclic.
On Certain Classes of rigid groups
On group automorphisms fixing subnormal subgroups setwise
In questo lavoro si studiano i gruppi , , degli automorfismi di un gruppo che fissano — come insiemi — tutti i sottogruppi di che risultano essere rispettivamente subnormali, subnormali di difetto al più , oppure che sono compresi tra un sottogruppo caratteristico ed il suo derivato. Si danno condizioni sufficienti affinché tali gruppi siano parasolubili di para-altezza al più 2 o 3. Si generalizzano così risultati da [4], [7], [8], [10].
On groups of automorphisms of nilpotent -groups of finite rank
On infinite Nielsen transformations.
On Outer Automorphism Groups of Coxeter Groups.
On outer automorphisms of Černikov -groups
On -groups with abelian automorphism group
On regular automorphisms of order 3 and Frobenius pairs.
On the Automorphism Group of a Finite Group Having No Non-Identity Normal Subgroup of Odd Order.
On the automorphism of a class of groups.
On the derived length of parasoluble groups
In this paper groups are considered inducing groups of power automorphisms on each factor of their derived series. In particular, it is proved that soluble groups with such property have derived length at most 3, and that this bound is best possible.
On the group of automorphisms of finite wreath products
On the isomorphism problem in the class of extensions of a free group by an infinite cyclic group.
On the lattice automorphisms of certain simple algebraic groups