TY - JOUR AU - D. V. Gorbachev TI - An estimate of an optimal argument in the sharp multidimensional Jackson–Stechkin $L_2$-inequality JO - Trudy Instituta matematiki i mehaniki PY - 2014 SP - 83 EP - 91 VL - 20 IS - 1 UR - http://geodesic.mathdoc.fr/item/TIMM_2014_20_1_a7/ LA - ru ID - TIMM_2014_20_1_a7 ER -