TY - JOUR AU - R. D. Akhmetkaliyeva AU - T. D. Mukasheva AU - K. N. Ospanov TI - Correct and coercive solvability conditions for a degenerate high order differential equation JO - Eurasian mathematical journal PY - 2023 SP - 9 EP - 14 VL - 14 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EMJ_2023_14_4_a1/ LA - en ID - EMJ_2023_14_4_a1 ER -