Abstract.
We consider sparseness, smoothness and the Glimm-Effros Dichotomy for the restriction of a Borel equivalence relation on a Polish space to definable subsets of that space.
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Received: 17 April 2001 / Published online: 5 November 2002
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Becker, H. The restriction of a Borel equivalence relation to a sparse set. Arch. Math. Logic 42, 335–347 (2003). https://doi.org/10.1007/s001530200142
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DOI: https://doi.org/10.1007/s001530200142