TREEABLE EQUIVALENCE RELATIONS

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    Author
    Hjorth, G
    Date
    2012-06-01
    Source Title
    Journal of Mathematical Logic
    Publisher
    WORLD SCIENTIFIC PUBL CO PTE LTD
    University of Melbourne Author/s
    HJORTH, GREG
    Affiliation
    Mathematics And Statistics
    Metadata
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    Document Type
    Journal Article
    Citations
    Hjorth, G. (2012). TREEABLE EQUIVALENCE RELATIONS. JOURNAL OF MATHEMATICAL LOGIC, 12 (1), https://doi.org/10.1142/S0219061312500031.
    Access Status
    This item is currently not available from this repository
    URI
    http://hdl.handle.net/11343/33241
    DOI
    10.1142/S0219061312500031
    Description

    C1 - Journal Articles Refereed
    Abstract
    There are continuum many ≤B-incomparable equivalence relations induced by a free, Borel action of a countable non-abelian free group — and hence, there are 2α0 many treeable countable Borel equivalence relations which are incomparable in the ordering of Borel reducibility.
    Keywords
    Mathematical Logic; Set Theory; Lattices and Universal Algebra; Expanding Knowledge in the Mathematical Sciences

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