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On Non-Strongly Free Automorphisms of Subfactors of Type $\text{II}{{\text{I}}_{0}}$

Published online by Cambridge University Press:  20 November 2018

Toshihiko Masuda*
Affiliation:
Department of Mathematics Kochi University 2-5-1 Akebono-cho Kochi, 780-8520 Japan
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Abstract

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We determine when an automorphism of a subfactor of type $\text{II}{{\text{I}}_{0}}$ with finite index is nonstrongly free in the sense of $\text{C}$. Winsløw in terms of the modular endomorphisms introduced by M. Izumi.

Keywords

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 2003

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