The Laczkovich-Komjáth property for coanalytic equivalence relations
2010 ◽
Vol 75
(3)
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pp. 1091-1101
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AbstractLet E be a coanalytic equivalence relation on a Polish space X and (An)n∈ω a sequence of analytic subsets of X. We prove that if lim supn∈kAn meets uncountably many E-equivalence classes for every K ∈ [ω]ω, then there exists K ∈ [ω]ω such that ∩n∈kAn contains a perfect set of pairwise E-inequivalent elements.
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1990 ◽
Vol 10
(1)
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pp. 1-14
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2008 ◽
Vol 28
(5)
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pp. 1509-1531
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2012 ◽
Vol 26
(25)
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pp. 1246006
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