This book covers Toeplitz operators, Hankel operators, and composition operators on both the Bergman space and the Hardy space. The setting is the unit disk and the main emphasis is on size estimates of these operators: boundedness, compactness, and membership in the Schatten classes. Most results concern the relationship between operator-theoretic properties of these operators and function-theoretic properties of the inducing symbols. Thus a good portion of the book is devoted to the study of analytic function spaces such as the Bloch space, Besov spaces, and BMOA, whose elements are to be used as symbols to induce the operators we study. The book is intended for both research mathematicians and graduate students in complex analysis and operator theory. The prerequisites are minimal; a graduate course in each of real analysis, complex analysis, and functional analysis should sufficiently prepare the reader for the book. Exercises and bibliographical notes are provided at the end of each chapter. These notes will point the reader to additional results and problems. Kehe Zhu is a professor of mathematics at the State University of New York at Albany. His previous books include *Theory of Bergman Spaces* (Springer, 2000, with H. Hedenmalm and B. Korenblum) and *Spaces of Holomorphic Functions in the Unit Ball* (Springer, 2005). His current research interests are holomorphic function spaces and operators acting on them. Readership Graduate students and research mathematicians interested in complex analysis and operator theory. Reviews "...the present title definitely has become a classic in the area. This highly welcome updated, revised, and enlarged new edition of Zhu's book has every chance of maintaining the book's position as one of the standard references in the area." *-- Mathematical Reviews* "Overall, providing current major developments in operator theoretic function theory in a clear and unified way, this new edition appears to be a significant contribution to the field and will be of value to both active researchers and advanced graduate students." *-- Zentralblatt MATH* |