Orbit inequivalent actions for groups containing a copy of \Bbb F₂

2006/12/31 by Adrian Ioana, Ioana, Adrian · 2 citations
Mathematics · #28D15 #46L10 #46L35 #Advanced Operator Algebra Research #FOS: Mathematics #Finite Group Theory Research #Geometric and Algebraic Topology #Group Theory (math.GR) #Operator Algebras (math.OA)

paper · pdf · doi:10.48550/arxiv.math/0701027

openalex publication_date 2006/12/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We prove that if a countable group Γ contains a copy of \Bbb F₂, then it admits uncountably many non orbit equivalent actions.

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