TY - JOUR AU - K. A. Kopotun TI - Uniform estimates of the coconvex approximation of functions by polynomials JO - Matematičeskie zametki PY - 1992 SP - 35 EP - 46 VL - 51 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1992_51_3_a4/ LA - ru ID - MZM_1992_51_3_a4 ER -