1999 - Classification and Orbit Equivalence Relations [Mathematical Surveys and Monographs] (Hardcover) ISBN-13: 9780821820025 ISBN-10: 0821820028 ? Rigidity Theorems for Actions of Product Groups and Countable Borel Equivalence Relations [Memoirs of the American Mathematical Society] (Hardcover) ISBN-13: 9780821837719 ISBN-10: 0821837710 ? |