%0 Journal Article %A N. V. Zhitarashu %T Theorems on the complete set of isomorphisms in the $L_2$-theory of generalized solutions of boundary value problems for a~Petrovskii parabolic equation %J Sbornik. Mathematics %D 1987 %P 447-471 %V 56 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1987_56_2_a10/ %G en %F SM_1987_56_2_a10