Actions of groups on lattices.
Actions of monoidally equivalent compact quantum groups and applications to probabilistic boundaries
The notion of monoidal equivalence for compact quantum groups was recently introduced by Bichon, De Rijdt and Vaes. In this paper we prove that there is a natural bijective correspondence between actions of monoidally equivalent quantum groups on unital -algebras or on von Neumann algebras. This correspondence turns out to be very useful to obtain the behavior of Poisson and Martin boundaries under monoidal equivalence of quantum groups. Finally, we apply these results to identify the Poisson boundary...
Actions of semilattices.
Active sums I.
Given a generating family F of subgroups of a group G closed under conjugation and with partial order compatible with inclusion, a new group S can be constructed, taking into account the multiplication in the subgroups and their mutual actions given by conjugation. The group S is called the active sum of F, has G as a homomorph and is such that S/Z(S) ≅ G/Z(G) where Z denotes the center.The basic question we investigate in this paper is: when is the active sum S of the family F isomorphic to the...
Active sums of groups.
Acyclic groups of automorphisms.
Addendum and corrigendum to «Automorfismi che fissano i centralizzanti di un gruppo»
Addendum : Finiteness theorems for discrete subgroups of bounded covolume in semi-simple groups
Addendum to "A survey of semigroups of continuous selfmaps" (with intro. by K. D. Magill).
Addendum to : “Prime graph components of finite almost simple groups” [Rend. Sem. Mat. Univ. Padova 102 (1999), 1–22]
Addendum to: Representations of inverse semigroups by one-to-one partial transformations of a set.
Addition and correction to the paper "Diagonal algebras"
Addition molle et fonctions p-locales.
Addition of rational fuzzy quantities: Convolutive approach
Additional notes on continuity in semitopological semigroups.
Adèles et groupes algébriques
Adhérence d'orbite et invariants.
Adjan's theorem and conjugacy in semigroups.
Adjoining conjugating elements to finite groups
Adjoint groups and the Mal'cev correspondence (a tale of four functors)