Inegalités de Sobolev Pour les Sous Laplaciens de Certains Groupes Unimodulaires.
Interpolation of multipliers of
Involutions on the second duals of group algebras versus subamenable groups
Let L¹(G)** be the second dual of the group algebra L¹(G) of a locally compact group G. We study the question of involutions on L¹(G)**. A new class of subamenable groups is introduced which is universal for all groups. There is no involution on L¹(G)** for a subamenable group G.
Isomorphic groupoid -algebras associated with different Haar systems.
Isomorphic Multiplier Algebras.