00511nam a2200145Ia 4500082001700000100002400017245007000041260003400111300002800145490005500173500007300228500000500301700002600306700003300332  a517bH118.ED  aHackbusch, Wolfgang  aElliptic differential equations; theory and numerical treatmentb  aBerlinbSpringer-Verlagc1992  axiv, 311p. Index. Bibl.  aSpringer series in Computational Mathematics, v.18  a"Translated from the German by Regine Fadiman and Patrick D. F. Ion"  a  aFadiman, Regine ; tr.  aIon, Patrick D. F. ; jt. tr.