%0 Journal Article %A A. Yu. Trynin %T A~method for solution of a~mixed boundary value problem for a~hyperbolic type equation using the operators $\mathbb{AT}_{\lambda,j}$ %J Izvestiya. Mathematics %D 2023 %P 1227-1254 %V 87 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2023_87_6_a5/ %G en %F IM2_2023_87_6_a5