%0 Journal Article %A A. G. Kamalian %A M. I. Karakhanyan %T On solvability of some boundary problem %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2020 %P 29-34 %V 54 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2020_54_1_a3/ %G en %F UZERU_2020_54_1_a3