The authors present some surprising connections that sets of uniqueness for trigonometic series have with descriptive set theory. They present many new results concerning the structure of sets of uniqueness and include solutions to some of the classical problems in this area. Topics covered include symmetric perfect sets and the solution to the Borel Basis Problem for U, the class of sets of uniqueness. To make the material accessible to both logicians, set theorists and analysts, the authors have covered in some detail large parts of the classical and modern theory of sets of uniqueness as well as the relevant parts of descriptive set theory. Because the book is essentially selfcontained and requires the minimum prerequisites, it will serve as an excellent introduction to the subject for graduate students and research workers in set theory and analysis.

Descriptive Set Theory and the Structure of Sets of Uniqueness (London Mathematical Society Lecture Note Series, Series Number 128)

Science & Math

Kechris, Alexander S.

Louveau, Alain

Mathematics

Cambridge University Press

<p>A Polish space (group) is a separable, completely metrizable topological space (group). This book is about actions of Polish groups, in connection with--or from the point of view of--the subject of descriptive set theory. Descriptive set theory is the study of definable sets and functions in Polish spaces. The basic classes of definable sets are the classes of Borel, analytic and coanalytic sets, and these constitute the main topic of the book, but the authors also consider other classes of definable sets. This will be a valuable book for all researchers in set theory and related areas.</p>

The Descriptive Set Theory of Polish Group Actions (London Mathematical Society Lecture Note Series, Series Number 232)

Becker, Howard

This volume presents articles from four outstanding researchers who work at the cusp of analysis and logic. The emphasis is on active research topics; many results are presented that have not been published before and open problems are formulated. Considerable effort has been made by the authors to make their articles accessible to mathematicians new to the area

Analysis and Logic (London Mathematical Society Lecture Note Series, Series Number 262)

Henson, C. Ward

Iovino, José

Odell, Edward

Book by Hjorth, Greg, Kechris, Alexander S.

Rigidity Theorems For Actions Of Product Groups And Countable Borel Equivalence Relations (Memoirs of the American Mathematical Society)

Hjorth, Greg

Amer Mathematical Society

<p>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.</p>

The Theory of Countable Borel Equivalence Relations (Cambridge Tracts in Mathematics, Series Number 234)