Journal of Operator Theory

Volume 35, Issue 1, Winter 1996 pp. 39-65.

Bimodules de Hopf et poids operatoriels de Haar

Authors: Jean-Michel Vallin
Author institution: Unite de Recherche de Paris 6/Orleans, associee au CNRS 747, URA 747, case 191, Universite Pierre et Marie Curie, 4 place Jussieu, F-75252 Paris Cedex 05, FRANCE

Summary: In this article we define the category of Hopf (-von Neumann) bimodules and a notion of Haar operatorial weight. For every locally compact groupoid with a Haar system we give two such objects and characterize finite groupoids in those terms.

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