TY - BOOK AU - Axelsson,O. AU - Vassilevski,P.S. TI - Algebraic multilevel preconditioning methods II AV - QA3.R46 No.8904 PY - 1989/// CY - Nijmegen PB - Catholic University, Department of Mathematics KW - Multilevel methods KW - Preconditioning methods KW - Algebra N1 - Includes bibliographical references ER -