%0 Journal Article %A A. K. Urinov %A D. A. Usmonov %T An initial-boundary problem for a hyperbolic equation with~three lines of degenerating of the second kind %J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences %D 2022 %P 672-693 %V 26 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGTU_2022_26_4_a3/ %G ru %F VSGTU_2022_26_4_a3