Extensions des -algèbres
Quelques problèmes concernant la structure des -algèbres
Sur les relations entre l'espace dual d'un groupe et la structure de ses sous-groupes fermés
Groupe modulaire d'une espérance conditionnelle dans une algèbre de von Neumann
Systèmes dynamiques non commutatifs et moyennabilité.
On relative amenability for von Neumann algebras
Classification des C*-algèbres purement infinies nucléaires
Purely infinite -algebras arising from dynamical systems
Pointwise limits for sequences of orbital integrals
In 1967, Ross and Stromberg published a theorem about pointwise limits of orbital integrals for the left action of a locally compact group G on (G,ρ), where ρ is the right Haar measure. We study the same kind of problem, but more generally for left actions of G on any measure space (X,μ), which leave the σ-finite measure μ relatively invariant, in the sense that sμ = Δ(s)μ for every s ∈ G, where Δ is the modular function of G. As a consequence, we also obtain a generalization of a theorem of Civin...
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