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
Junsheng Fang;Rui Shi;Shilin Wen
中科院分区:
数学3区
文献类型:
--
作者:
Junsheng Fang;Rui Shi;Shilin Wen

文献摘要

被引文献

相似文献

设M是具有可分预对偶的因子von Neumann代数,T∈ M.我们称T是(相对于M的)不可约算子,如果W <$(T)是M的不可约子因子,即W <$(T)′ <$M= CI.本文证明了M中不可约算子集是M在算子范数下的G δ稠密子集。这是Halmos定理的自然推广。
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.