TY  - JOUR
AU  - Harry Yserentant
TI  - Two preconditioners based on the multi-level splitting of finite element spaces.
JO  - Numerische Mathematik
PY  - 1990
SP  - 163
EP  - 184
VL  - 58
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1990__58_5_133494/
ID  - NUMA_1990__58_5_133494
ER  -