On irreducible operators in factor von Neumann algebras
- 论文类型:期刊论文
- 发表刊物:LINEAR ALGEBRA AND ITS APPLICATIONS
- 收录刊物:SCIE、EI
- 卷号:565
- 页面范围:239-243
- ISSN号:0024-3795
- 关键字:Factor von Neumann algebras; Irreducible operators
- 摘要:Let M be a factor von Neumann algebra with separable predual and let T is an element of M. We call T an irreducible operator (relative to M) if W*(T) is an irreducible subfactor of M, i.e., W*(T)' boolean AND M = CI. In this note, we show that the set of irreducible operators in M is a dense G(delta) subset of M in the operator norm. This is a natural generalization of a theorem of Halmos. (C) 2018 Elsevier Inc. All rights reserved.
- 发表时间:2019-03-15