TY - JOUR AU - V. I. Uskov TI - Cauchy problem for a sedond-order degeneracy differential equation in a Banach space JO - Vestnik Tverskogo gosudarstvennogo universiteta. Seriâ Prikladnaâ matematika PY - 2023 SP - 70 EP - 80 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VTPMK_2023_4_a4/ LA - ru ID - VTPMK_2023_4_a4 ER -