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A structural result of irreducible inclusions
of type $\textup{III}_\lambda$ factors, $\lambda\in(0,1)$


Author: Phan H. Loi
Journal: Proc. Amer. Math. Soc. 126 (1998), 2651-2662
MSC (1991): Primary 46L10, 46L55
DOI: https://doi.org/10.1090/S0002-9939-98-04349-4
MathSciNet review: 1451818
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Abstract: Given an irreducible inclusion of factors with finite index $N\subset M$, where $M$ is of type $\textup{III}_{\lambda^{1/m}}$, $N$ of type $\textup{III}_{\lambda^{1/n}}$, $0<\lambda<1$, and $m,n$ are relatively prime positive integers, we will prove that if $N\subset M$ satisfies a commuting square condition, then its structure can be characterized by using fixed point algebras and crossed products of automorphisms acting on the middle inclusion of factors associated with $N\subset M$. Relations between $N\subset M$ and a certain $G$-kernel on subfactors are also discussed.


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Additional Information

Phan H. Loi
Affiliation: Department of Mathematics and Statistics, Wright State University, Dayton, Ohio 45435
Email: ploi@desire.wright.edu

DOI: https://doi.org/10.1090/S0002-9939-98-04349-4
Received by editor(s): June 17, 1996
Received by editor(s) in revised form: January 28, 1997
Communicated by: Palle E. T. Jorgensen
Article copyright: © Copyright 1998 American Mathematical Society

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