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Connes' bicentralizer problem for q‐deformed Araki–Woods algebras
Bulletin of the London Mathematical Society ( IF 0.9 ) Pub Date : 2020-06-28 , DOI: 10.1112/blms.12376
Cyril Houdayer 1, 2 , Yusuke Isono 3
Affiliation  

Let ( H R , U t ) be any strongly continuous orthogonal representation of R on a real (separable) Hilbert space H R . For any q ( 1 , 1 ) , we denote by Γ q ( H R , U t ) the q ‐deformed Araki–Woods algebra introduced by Shlyakhtenko and Hiai. In this paper, we prove that Γ q ( H R , U t ) has trivial bicentralizer if it is a type III 1 factor. In particular, we obtain that Γ q ( H R , U t ) always admits a maximal abelian subalgebra that is the range of a faithful normal conditional expectation. Moreover, using Śniady's work, we derive that Γ q ( H R , U t ) is a full factor provided that the weakly mixing part of ( H R , U t ) is nonzero.

中文翻译:

q变形的Araki–Woods代数的Connes双中心化问题

H [R ü Ť 是...的任何强连续正交表示 [R 在真实的(可分离的)希尔伯特空间上 H [R 。对于任何 q - 1个 1个 ,我们用 Γ q H [R ü Ť q Shlyakhtenko和Hiai引入的变形Araki–Woods代数。在本文中,我们证明 Γ q H [R ü Ť 如果类型是平凡的bicentralizer 三级 1个 因子。特别是,我们获得 Γ q H [R ü Ť 总是接受最大的阿贝尔亚代数,该子代数是忠实的正常条件期望的范围。此外,利用Śniady的工作,我们得出 Γ q H [R ü Ť 是一个充分的因素,前提是 H [R ü Ť 不为零。
更新日期:2020-06-28
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