Abramovich, Y.A. . Problems in operator theory / by Y.A. Abramovich and C.D. Aliprantis. - Rhode Island : American Mathematical Society , 2012 - xii, 386p ; ISBN: 978-0-8218-8716-5 Subjects--Topical Terms: Operator theory-Problems, exercises, etc Dewey Class. No.: B9:73 / Q2;4