%0 Journal Article %A T. H. Rasulov %A H. M. Latipov %T Description of the spectrum of one fourth-order operator matrix %J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences %D 2023 %P 427-445 %V 27 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGTU_2023_27_3_a1/ %G ru %F VSGTU_2023_27_3_a1