نتایج جستجو برای: borel cantelli

تعداد نتایج: 4457  

2017
John D. Clemens Dominique Lecomte Benjamin D. Miller JOHN D. CLEMENS BENJAMIN D. MILLER

We prove that for every Borel equivalence relation E, either E is Borel reducible to E0, or the family of Borel equivalence relations incompatible with E has cofinal essential complexity. It follows that if F is a Borel equivalence relation and F is a family of Borel equivalence relations of non-cofinal essential complexity which together satisfy the dichotomy that for every Borel equivalence r...

2007
John Clemens Clinton Conley Benjamin Miller

Given a countable Borel equivalence relation E on a Polish space, let IE denote the σ-ideal generated by the Borel partial transversals of E. We show that there is a Borel homomorphism from IE to IF if and only if there is a smooth-to-one Borel homomorphism from a finite index Borel subequivalence relation of E to F . As a corollary, we see that IE is homogeneous in the sense of Zapletal (2007,...

Journal: :J. Symb. Log. 2005
Christian Rosendal

Families of Borel equivalence relations and quasiorders that are cofinal with respect to the Borel reducibility ordering, ≤B , are constructed. There is an analytic ideal on ù generating a complete analytic equivalence relation and any Borel equivalence relation reduces to one generated by a Borel ideal. Several Borel equivalence relations, among them Lipschitz isomorphism of compact metric spa...

Journal: :Proceedings of the American Mathematical Society 2002

Journal: :J. Symb. Log. 2014
Jay Williams

In recent years, much work in descriptive set theory has been focused on the Borel complexity of naturally occurring classification problems, in particular, the study of countable Borel equivalence relations and their structure under the quasi-order of Borel reducibility. Following the approach of Louveau and Rosendal in [8] for the study of analytic equivalence relations, we study countable Bo...

1996
ALEXANDER S. KECHRIS ALAIN LOUVEAU

This paper is a contribution to the study of Borel equivalence relations in standard Borel spaces, i.e., Polish spaces equipped with their Borel structure. A class of such equivalence relations which has received particular attention is the class of hyperfinite Borel equivalence relations. These can be defined as the increasing unions of sequences of Borel equivalence relations all of whose equ...

2002
Shahar Mendelson

2 Glivenko-Cantelli Classes 5 2.1 The classical approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1.1 The symmetrization procedure . . . . . . . . . . . . . . . . . . . . . 7 2.1.2 Covering numbers and complexity estimates . . . . . . . . . . . . . . 9 2.2 Combinatorial parameters and covering numbers . . . . . . . . . . . . . . . 12 2.2.1 Uniform entropy and the VC dimen...

2012
Sabrina Angelini Simona Soverini Gloria Ravegnini Matt Barnett Eleonora Turrini Mark Thornquist Fabrizio Pane Timothy P. Hughes Deborah L. White Jerry Radich Dong-Wook Kim Giuseppe Saglio Daniela Cilloni Ilaria Iacobucci Giovanni Perini Richard Woodman Giorgio Cantelli-Forti Michele Baccarani Patrizia Hrelia Giovanni Martinelli Jerald Radich Dong Wook Kim

Citation: Angelini S, Soverini S, Ravegnini G, Barnett M, Turrini E, Thornquist M, Pane F, Hughes TP, White DL, Radich J, Kim DW, Saglio G, Cilloni D, Iacobucci I, Perini G, Woodman R, Cantelli-Forti G, Baccarani M, Hrelia P, and Martinelli G. Association between imatinib transporters and metabolizing enzymes genotype and response in newly diagnosed chronic myeloid leukemia patients receiving i...

Let K be a locally compact hypergroup. In this paper we initiate the concept of fundamental domain in locally compact hypergroups and then we introduce the Borel section mapping. In fact, a fundamental domain is a subset of a hypergroup K including a unique element from each cosets, and the Borel section mapping is a function which corresponds to any coset, the related unique element in the fun...

Journal: :Transactions of the American Mathematical Society 1988

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