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Valette, Alain
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Valette, Alain
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alain.valette@unine.ch
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Voici les éléments 1 - 2 sur 2
- PublicationMétadonnées seulementProper affine isometric actions of amenable groups(1995)
;Bekka, Bachir ;Cherix, Pierre-Alain - PublicationMétadonnées seulementLattices in semi-simple Lie groups and multipliers of group C*-algebras(1995)
;Bekka, BachirLet Gamma be a lattice in a non-compact simple Lie group G. We prove that the canonical map from the full C*-algebra C*(Gamma) to the multiplier algebra M(C*(G)) is not injective in general (it is never injective if G has Kazhdan's property (T), and not injective for many lattices either in SO(n, 1) or SU(n, 1)). For a locally compact group G, Fell introduced a property (WF3), stating that for any closed subgroup H of G, the canonical map from C*(H) to M(C*(G)) is injective. We prove that, for an almost connected G, property (WF3) is equivalent to amenability.