TY - JOUR AU - V. V. Gorodestkii TI - Polynomial approximation of solutions of evolutionary parabolic equations in a~Hilbert space JO - Matematičeskie zametki PY - 1991 SP - 23 EP - 27 VL - 49 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1991_49_3_a2/ LA - ru ID - MZM_1991_49_3_a2 ER -