-covering systems of subgroups for classes of -supersoluble and -nilpotent finite groups.
GBRDs with block size three over 2-groups, semi-dihedral groups and nilpotent groups.
Generalized Adams completion
Generation of finite groups by nilpotent subgroups
We study the generation of finite groups by nilpotent subgroups and in particular we investigate the structure of groups which cannot be generated by nilpotent subgroups and such that every proper quotient can be generated by nilpotent subgroups. We obtain some results about the structure of these groups and a lower bound for their orders.
Group extensions and automorphism group rings.
Group Rings of Circle and Unit Groups.
Groups of Prime-Power Order Having an Abelian Centralizer of Type (r, 1).
Groups, transversals, and loops
A family of loops is studied, which arises with its binary operation in a natural way from some transversals possessing a ``normality condition''.
Groups with Normalizer Condition.
Groups with Weakly Closed T I-subgroups.
Gruppi di operatori che fissano un sottogruppo di Sylow