%0 Journal Article %A Peter D. Lax %A L. Nirenberg %T On stability for difference schemes: A sharp form of GÄrding's inequality %J Matematika %D 1967 %P 3-20 %V 11 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAT_1967_11_6_a0/ %G ru %F MAT_1967_11_6_a0