TY  - BOOK
AU  - Axelsson, O.
AU  - Yu R. Hakopian
AU  - Yu R. Kuznetsov
TI  - Multilevel preconditioning for perturbed finite element matrices
T2  - Report 9432
AV  - MATH QA3.R46 no.9432 
CY  - Nijmegen
KW  - Preconditioning methods
KW  -  Multilevel methods
KW  - Perturbation (Mathematics)
KW  - Matrices
N1  - Includes bibliographical references
ER  -