%0 Journal Article %A John Miller %A Gilbert Strang %T Matrix Theorems for Partial Differential and Difference Equations. %J Mathematica Scandinavica %D 1966 %P 113-133 %V 18 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1966__18_165947/ %F MS2_1966__18_165947