On the Occurrence of the Complete Graph in the Hasse Graph of a Finite Group
On the prefrattini subgroups of finite soluble groups.
On the total number of principal series of a finite abelian group.
On uniform dimensions of finite groups
Let G be any finite group and L(G) the lattice of all subgroups of G. If L(G) is strongly balanced (globally permutable) then we observe that the uniform dimension and the strong uniform dimension of L(G) are well defined, and we show how to calculate these dimensions.
Proiettività dei -gruppi di classe massimale
Projektive Klassen endlicher Gruppen. I. Schunck- und Gaschützklassen.
Rank analogues of Hall's and Baer's theorems.
Remark on the multiplicity of a partition of a group into cosets
Simply connected coset complexes for rank 1 groups of Lie type.
Solitary quotients of finite groups
We introduce and study the lattice of normal subgroups of a group G that determine solitary quotients. It is closely connected to the well-known lattice of solitary subgroups of G, see [Kaplan G., Levy D., Solitary subgroups, Comm. Algebra, 2009, 37(6), 1873–1883]. A precise description of this lattice is given for some particular classes of finite groups.
Some finite congruence lattices, I
Some remarks on G-functors and the Brauer morphism.
Some results on the partitions of groups
Some subgroups of the Baby Monster.
Sopra alcune classi di gruppi minimali non-P
In this paper we study finite non abelian groups in which every proper normal subgroup and every proper epimorphic image is abelian. Also we study finite non nilpotent groups in which every normal subgroup and every proper epimorphic image is nilpotent and those finite soluble non nilpotent groups in which every proper normal subgroup is nilpotent.
Stability groups and central series.
Su una classe di gruppi dotati di una serie di spezzamento principale
Groups all whose nonidentity subgroups split over a normal inseparable nonidentity subgroup are studied.
Su una classe di gruppi finiti supersolubili
In this paper we study the class of finite groups whose nilpotent residual is a Hall subgroup having all subgroups normal in .
Submodular Subgroups in Finite Groups.
Submodularità nei gruppi finiti