A reduction theory for operators in type In von Neumann algebras.
- 论文类型:期刊论文
- 发表刊物:Houston Journal of Mathematics
- 收录刊物:SCIE、Scopus
- 卷号:40
- 期号:4
- 页面范围:1183-1224
- ISSN号:0362-1588
- 关键字:Strongly irreducible operator; similarity invariant; reduction theory of von Neumann algebras; K-theory
- 摘要:In this paper, we study the structures of operators in a type I-n von Neumann algebra A. As an analogue of the Jordan canonical form theorem, for an operator A in A, we prove that if {A}' boolean AND A contains a bounded maximal Boolean algebra of idempotents, then the bounded maximal Boolean algebras of idempotents in the relative commutant {A}' boolean AND A are the same up to similarity. Meanwhile we characterize the structures for operators in A whose relative commutants contain bounded maximal Boolean algebras of idempotents. We also classify this class of operators by K-theory for Banach algebras. We use techniques of von Neumann's reduction theory in our proofs.
- 发表时间:2014-01-01