TY - JOUR AU - Zhang, Jun TI - On preconditioning Schur complement and Schur complement preconditioning JO - Electronic transactions on numerical analysis PY - 2000 SP - 115 EP - 130 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ETNA_2000__10__a0/ LA - en ID - ETNA_2000__10__a0 ER -