%0 Journal Article %A V. V. Provotorov %A M. A. Rybakov %T Solution of the initial boundary value problem in symbolic form %J Vestnik rossijskih universitetov. Matematika %D 2023 %P 203-212 %V 28 %N 142 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTAMU_2023_28_142_a8/ %G ru %F VTAMU_2023_28_142_a8