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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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An example of a weight with type III centralizer
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by Uffe Haagerup PDF
Proc. Amer. Math. Soc. 62 (1977), 278-280 Request permission

Abstract:

We give an example of a weight $\phi$ on the hyperfinite type ${\text {II}_\infty }$ factor R, such that the centralizer ${M_\phi }$ of $\phi$ is a type III von Neumann algebra.
References
  • François Combes, Poids et espérances conditionnelles dans les algèbres de von Neumann, Bull. Soc. Math. France 99 (1971), 73–112 (French). MR 288589
  • F. Combes and C. Delaroche, Groupe modulaire d’une espérance conditionnelle dans une algèbre de von Neumann, Université d’Orléans, 1974 (preprint). A. Connes and M. Takesake, Flow of weights on factors of type III, 1975 (preprint).
  • Gert K. Pedersen and Masamichi Takesaki, The Radon-Nikodym theorem for von Neumann algebras, Acta Math. 130 (1973), 53–87. MR 412827, DOI 10.1007/BF02392262
  • Shôichirô Sakai, ${C^\ast }$-algebras and ${W^\ast }$-algebras, Springer-Verlag, Berlin, 1971.
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Additional Information
  • © Copyright 1977 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 62 (1977), 278-280
  • MSC: Primary 46L10
  • DOI: https://doi.org/10.1090/S0002-9939-1977-0430801-2
  • MathSciNet review: 0430801