TY - JOUR AU - E. E. Berdysheva TI - Optimal Set of the Modulus of Continuity in the Sharp Jackson Inequality in the Space $L_2$ JO - Matematičeskie zametki PY - 2004 SP - 666 EP - 674 VL - 76 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2004_76_5_a2/ LA - ru ID - MZM_2004_76_5_a2 ER -