%0 Journal Article %A A. H. Mohamad %T Solvability conditions in the analytical form of a descriptor system of partial differential equations %J Vestnik rossijskih universitetov. Matematika %D 2021 %P 130-142 %V 26 %N 134 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTAMU_2021_26_134_a2/ %G ru %F VTAMU_2021_26_134_a2