A class of generalized supersoluble groups.
A generalized Hopf formula for higher homology groups.
A lattice of homomorphs
A theorem on groups
Almost-Bieberbach groups with prime order holonomy
The main issue of this paper is an attempt to find a decomposition theorem for infra-nilmanifolds in the same spirit as a result of A. Vasquez for flat Riemannian manifolds. That is: we look for infra-nilmanifolds with prime order holonomy which can be obtained as a fiber space with a non-trivial nilmanifold as fiber and an infra-nilmanifold as its base. In this perspective, we prove the following algebraic result: if E is an almost-Bieberbach group with prime order holonomy,...
Carter subgroups and injectors in a class of locally finite groups
Characterization of the soluble one-generator totally saturated formations of finite groups.
Factorizations of one-generated -local formations.
Injectors of fitting classes of -groups
Fitting classes and injectors are discussed in the class of -groups. A necessary and sufficient condition for the existence of injectors is given; it is also shown that, when this condition holds, the injectors form a unique conjugacy class.
Injectors of Locally Soluble FC-Groups.
Lattices of partially local Fitting classes.
M-Groups and the Supersolvable Residual.
More metanilpotent Fitting classes with bounded chief factor ranks
On Fitting Formations.
On fully unsaturated homomorphs of finite groups
The Fitting class generated by the -perfect groups
The formation generated by a finite group
Über normale Schunck- und Fittingklassen.
Wreath products and Fitting classes of S1-groups.
Геометрическая характеризация свободных конструкций проконечных групп.