An equivalence relation that is not freely generated
Author:
Abstract
In this paper it is shown that there exists a Borel equivalence relation with countable equivalence classes that is not generated by a free Borel action of a countable discrete group.
Publisher
American Mathematical Society (AMS)
Subject
Applied Mathematics,General Mathematics
Link
http://www.ams.org/proc/1988-102-03/S0002-9939-1988-0928981-2/S0002-9939-1988-0928981-2.pdf
Reference3 articles.
1. Ergodic equivalence relations, cohomology, and von Neumann algebras. I;Feldman, Jacob;Trans. Amer. Math. Soc.,1977
2. Monographs in Mathematics;Zimmer, Robert J.,1984
3. Hyperfinite factors and amenable ergodic actions;Zimmer, Robert J.;Invent. Math.,1977
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