Triangular Actions on C3.
Dennis M. Snow (1988)
Manuscripta mathematica
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Dennis M. Snow (1988)
Manuscripta mathematica
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Kaliman, Shulim I., Koras, Mariusz, Makar-Limanov, Leonid, Russell, Peter (1997)
Electronic Research Announcements of the American Mathematical Society [electronic only]
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Ronald G. Douglas, Piotr W. Nowak (2010)
Studia Mathematica
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We study actions of discrete groups on Hilbert C*-modules induced from topological actions on compact Hausdorff spaces. We show non-amenability of actions of non-amenable and non-a-T-menable groups, provided there exists a quasi-invariant probability measure which is sufficiently close to being invariant.
Rakhimov, A.A. (2004)
Zapiski Nauchnykh Seminarov POMI
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Grigorchuk, R.I., Nekrashevych, V.Yu. (2005)
Zapiski Nauchnykh Seminarov POMI
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Stefaan Vaes (2005-2006)
Séminaire Bourbaki
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Using very original methods from operator algebras, Sorin Popa has shown that the orbit structure of the Bernoulli action of a property (T) group, completely remembers the group and the action. This information is even essentially contained in the crossed product von Neumann algebra. This is the first von Neumann strong rigidity theorem in the literature. The same methods allow Popa to obtain II factors with prescribed countable fundamental group.
Ewa Duma (1990)
Colloquium Mathematicae
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R.S. Kulkarni (1982)
Mathematische Annalen
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Jerzy Jurkiewicz (1990)
Compositio Mathematica
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Krzysztof Pawałowski (1986)
Banach Center Publications
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John Ewing, Robert Stong (1986)
Mathematische Zeitschrift
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Hans Rudolf Schneebeli, James Howie (1980)
Mathematische Zeitschrift
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M. Kanai (1996)
Geometric and functional analysis
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Furman, Alex (1999)
Annals of Mathematics. Second Series
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William Browder, Wu-Chung Hsiang (1981/82)
Inventiones mathematicae
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