P-equivalence de groupes nilpotents.
Perfect completely semisimple inverse semigroups.
Perfect elements in Dubreil-Jacotin regular semigroups.
Perfect monoids.
Perfect monoids revisited.
Perfect numbers and finite groups
Perfectly supportable semigroups are σ-discrete in each Hausdorff shift-invariant topology
In this paper we introduce perfectly supportable semigroups and prove that they are σ-discrete in each Hausdorff shiftinvariant topology. The class of perfectly supportable semigroups includes each semigroup S such that FSym(X) ⊂ S ⊂ FRel(X) where FRel(X) is the semigroup of finitely supported relations on an infinite set X and FSym(X) is the group of finitely supported permutations of X.
Perfectness of certain subsemigroups of a perfect semigroup.
Periodic endomorphisms of a free monoid.
Periodic factorization of a finite Abelian 2-group.
Periodic groups saturated by the group .
Periodic groups saturated with the groups .
Periodic linear groups factorized by mutually permutable subgroups
The aim is to investigate the behaviour of (homomorphic images of) periodic linear groups which are factorized by mutually permutable subgroups. Mutually permutable subgroups have been extensively investigated in the finite case by several authors, among which, for our purposes, we only cite J. C. Beidleman and H. Heineken (2005). In a previous paper of ours (see M. Ferrara, M. Trombetti (2022)) we have been able to generalize the first main result of J. C. Beidleman, H. Heineken (2005) to periodic...
Periodic monoids over which all flat cyclic right acts satisfy condition (P).
Periodic properties of groupbound semigroups.
Periodic properties of groupbound semigroups II.
Periodic Simple Modules for SU3(q2) in the Describing Characteristic p...2.
Periodic subgroups of projective linear groups in positive characteristic
We classify the maximal irreducible periodic subgroups of PGL(q, ), where is a field of positive characteristic p transcendental over its prime subfield, q = p is prime, and × has an element of order q. That is, we construct a list of irreducible subgroups G of GL(q, ) containing the centre ×1q of GL(q, ), such that G/ ×1q is a maximal periodic subgroup of PGL(q, ), and if H is another group of this kind then H is GL(q, )-conjugate to a group in the list. We give criteria for determining...
Periodic weakly-cancellative semigroups.
Periodic-by-nilpotent linear groups