%0 Journal Article %A A.-R. K. Ramazanov %A A.-K. K. Ramazanov %T Approximate solution of a boundary value problem with a discontinuous solution %J Daghestan Electronic Mathematical Reports %D 2021 %P 22-29 %V 15 %I mathdoc %U http://geodesic.mathdoc.fr/item/DEMR_2021_15_a1/ %G ru %F DEMR_2021_15_a1