%0 Journal Article %A V. I. Ivanov %A D. V. Chertova %A Liu Yongping %T The sharp Jackson inequality in the space $L_2$ on the segment $[-1,1]$ with the power weight %J Trudy Instituta matematiki i mehaniki %D 2008 %P 112-126 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2008_14_3_a9/ %G ru %F TIMM_2008_14_3_a9