On irreducible operators in factor von Neumann algebras
On irreducible operators in factor von Neumann algebras
复制标题
DOI:
10.1016/j.laa.2018.12.014
复制
发表时间:
2018-05
影响因子:
1.1
通讯作者:
Junsheng Fang;Rui Shi;Shilin Wen
中科院分区:
文献类型:
--
作者:
Junsheng Fang;Rui Shi;Shilin Wen
Let M be a factor von Neumann algebra with separable predual and let T∈ M. We call T an irreducible operator (relative to M) if W⁎(T) is an irreducible subfactor of M, ie, W⁎(T)′∩ M= C I. In this note, we show that the set of irreducible operators in M is a dense G δ subset of M in the operator norm. This is a natural generalization of a theorem of Halmos.