Jindřich Zapletal
Separating equivalence classes

Comment.Math.Univ.Carolin. 59,4 (2018) 531-540.

Abstract:Given a countable Borel equivalence relation, I introduce an invariant measuring how difficult it is to find Borel sets separating its equivalence classes. I evaluate these invariants in several standard generic extensions.

Keywords: countable Borel equivalence relation; forcing

DOI: DOI 10.14712/1213-7243.2015.267
AMS Subject Classification: 03E15 03E17

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