TY - JOUR AU - Yu. P. Apakov AU - S. M. Mamajanov TI - Boundary value problem for a fourth-order equation of parabolic-hyperbolic type with multiple characteristics, whose slopes are greater than one JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2022 SP - 3 EP - 14 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2022_4_a0/ LA - ru ID - IVM_2022_4_a0 ER -