TY - JOUR AU - V. V. Arestov TI - A variant of Stechkin's problem on the best approximation of a fractional order differentiation operator on the axis JO - Trudy Instituta matematiki i mehaniki PY - 2024 SP - 37 EP - 54 VL - 30 IS - 4 UR - http://geodesic.mathdoc.fr/item/TIMM_2024_30_4_a3/ LA - ru ID - TIMM_2024_30_4_a3 ER -