arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1107.5153math.OA
收藏

Von Neumann Algebras的中心扩张上的拓扑

Topologies on Central Extensions of Von Neumann Algebras

Sh. A. Ayupov, K. K. Kudaybergenov, R. T. Djumamuratov

摘要:

给定一个von Neumann代数$M$,我们考虑$M.$的中心扩张$E(M)$.我们在$E(M)$上引入了由中心范数生成的拓扑$t_c(M)$,并证明了它与$E(M)$上局部依测度收敛的拓扑一致当且仅当$M$不具有II型直和项.证明了限制在$E(M)$的自伴元集$E(M)_h$上的$t_c(M)$与$E(M)_h$上的序拓扑一致当且仅当$M$是$σ$ -有限I型$_{fin}$ von Neumann代数.

英文摘要:

Given a von Neumann algebra $M$ we consider the central extension $E(M)$ of $M.$ We introduce the topology $t_c(M)$ on $E(M)$ generated by a center-valued norm and prove that it coincides with the topology of convergence locally in measure on $E(M)$ if and only if $M$ does not have direct summands of type II. We also show that $t_c(M)$ restricted on the set $E(M)_h$ of self-adjoint elements of $E(M)$ coincides with the order topology on $E(M)_h$ if and only if $M$ is a $σ$-finite type I$_{fin}$ von Neumann algebra.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑