TY - JOUR AU - V. I. Fomin TI - On the Solution of the Cauchy Problem for a Second-Order Linear Differential Equation with Constant Unbounded Operator Coefficients in a Banach Space JO - Differencialʹnye uravneniâ PY - 2005 SP - 1130 EP - 1133 VL - 41 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2005_41_8_a16/ LA - ru ID - DE_2005_41_8_a16 ER -