Semigroups in finite von Neumann algebras

Abstract

Abstract. Let M be a finite von Neumann algebra. In the first part, we give asymptotic results about M -stable sequences of weak*-continuous mappings which are related with operators belonging to M . In the second part, we extend, by a shorter way, similarity results given in [CaFa2] to unbounded semigroups of operators contained in a finite von Neumann algebra.