Invariant Descriptive Set Theory

After a brief review of the classical descriptive theoretical results that are employed throughout the text, this book discusses the theory of Polish group actions as well as orbit equivalence relations. It also addresses the topic of definable, non-orbit equivalence relations and explores connections between different fields of mathematics. The final section presents applications to classification problems.Gao, Su is the author of 'Invariant Descriptive Set Theory ', published 2007 under ISBN 9781584887935 and ISBN 1584887931.