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Perturbations of Von Neumann Subalgebras With Finite Index

Published online by Cambridge University Press:  20 November 2018

Shoji Ino
Shoji Ino*
Affiliation:
Department of Mathematical Sciences, Kyushu University, Motooka, Fukuoka, 819-0395, Japan e-mail: s-ino@math.kyushu-u.ac.jp
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Abstract

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In this paper, we study uniform perturbations of von Neumann subalgebras of a von Neumann algebra. Let $M$ and $N$ be von Neumann subalgebras of a von Neumann algebra with finite probabilistic index in the sense of Pimsner and Popa. If $M$ and $N$ are sufficiently close, then $M$ and $N$ are unitarily equivalent. The implementing unitary can be chosen as being close to the identity.

Keywords

46L1046L37von Neumann algebrasperturbations
Type
Research Article
Information
Canadian Mathematical Bulletin , Volume 59 , Issue 2 , 01 June 2016 , pp. 320 - 325
Copyright
Copyright © Canadian Mathematical Society 2016

References

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