TY - JOUR AU - D. V. Gorbachev TI - The sharp Jackson inequality in the space $L_p$ on the sphere JO - Matematičeskie zametki PY - 1999 SP - 50 EP - 62 VL - 66 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1999_66_1_a5/ LA - ru ID - MZM_1999_66_1_a5 ER -