TY - JOUR AU - Yu. I. Lyubich TI - Density conditions on the initial manifold for the abstract Cauchy problem JO - Doklady Akademii Nauk PY - 1964 SP - 262 EP - 265 VL - 155 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1964_155_2_a4/ LA - ru ID - DAN_1964_155_2_a4 ER -