TY  - BOOK
AU  - Margenov,Svetozar
TI  - Quadratic splines from C' in FEM on obtaining preconditioning matrices using spestral equivalence techniques
T2  - Report 8805
AV  - QA3.R46 no.8805 
PY  - 1988///
CY  - Nijmegen : 
PB  - Catholic University, Department of Mathematics
KW  - Spline theory
KW  - Equivalence relations (set theory)
KW  - Matrices
N1  - Includes bibliographical references
ER  -