English

Applications of operator space theory to nest algebra bimodules

Operator Algebras 2012-01-04 v1

Abstract

Recently Blecher and Kashyap have generalized the notion of W* modules over von Neumann algebras to the setting where the operator algebras are \sigma- weakly closed algebras of operators on a Hilbert space. They call these modules weak* rigged modules. We characterize the weak* rigged modules over nest algebras . We prove that Y is a right weak* rigged module over a nest algebra Alg(M) if and only if there exists a completely isometric normal representation \phi of Y and a nest algebra Alg(N) such that Alg(N)\phi(Y)Alg(M) \subset \phi(Y) while \phi(Y) is implemented by a continuous nest homomorphism from M onto N. We describe some properties which are preserved by continuous CSL homomorphisms.

Keywords

Cite

@article{arxiv.1201.0293,
  title  = {Applications of operator space theory to nest algebra bimodules},
  author = {G. K. Eleftherakis},
  journal= {arXiv preprint arXiv:1201.0293},
  year   = {2012}
}