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arXiv · 1704.07255

Singular MASAs in type III factors and Connes' Bicentralizer Property

Cyril Houdayer·Sorin Popa
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Abstract

We show that any type ${\rm III_1}$ factor with separable predual satisfying Connes' Bicentralizer Property (CBP) has a singular maximal abelian $\ast$-subalgebra that is the range of a normal conditional expectation. We also investigate stability properties of CBP under finite index extensions/restrictions of type ${\rm III_1}$ factors.

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Cyril Houdayer, Sorin Popa. 2017-04-24. Singular MASAs in type III factors and Connes' Bicentralizer Property. https://arxiv.org/abs/1704.07255

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