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Published 2007 | Published
Journal Article Open

Isomorphism of Borel full groups

Abstract

Suppose that G and H are Polish groups which act in a Borel fashion on Polish spaces X and Y. Let E_G^X and E_H^Y denote the corresponding orbit equivalence relations, and [G] and [H] the corresponding Borel full groups. Modulo the obvious counterexamples, we show that [G] ≅ [H] ⇔ E_G^X ≅_B E_H^Y

Additional Information

© 2006 American Mathematical Society. Reverts to public domain 28 years from publication. Received by the editors June 20, 2005 and, in revised form, September 6, 2005. Posted: August 8, 2006. Communicated by Julia Knight. The first author was supported in part by NSF VIGRE Grant DMS-0502315

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Created:
August 19, 2023
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October 24, 2023