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The Theory of Countable Borel Equivalence Relations

Alexander S Kechris author

Format:Hardback

Publisher:Cambridge University Press

Published:21st Nov '24

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The Theory of Countable Borel Equivalence Relations cover

A survey of the state of the art in a very active area of research in descriptive set theory.

This book surveys the state of the art in a very active research area in descriptive set theory, which has important connections to many areas of mathematics, including group theory, dynamical systems, and operator algebras. It will be of great value to beginning graduate students and researchers in these areas.The theory of definable equivalence relations has been a vibrant area of research in descriptive set theory for the past three decades. It serves as a foundation of a theory of complexity of classification problems in mathematics and is further motivated by the study of group actions in a descriptive, topological, or measure-theoretic context. A key part of this theory is concerned with the structure of countable Borel equivalence relations. These are exactly the equivalence relations generated by Borel actions of countable discrete groups and this introduces important connections with group theory, dynamical systems, and operator algebras. This text surveys the state of the art in the theory of countable Borel equivalence relations and delineates its future directions and challenges. It gives beginning graduate students and researchers a bird's-eye view of the subject, with detailed references to the extensive literature provided for further study.

ISBN: 9781009562294

Dimensions: 229mm x 152mm x 11mm

Weight: 403g

174 pages