%0 Journal Article %A N. S. Vyacheslavov %T On the approximation of $x^\alpha$ by rational functions %J Izvestiya. Mathematics %D 1981 %P 83-101 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1981_16_1_a4/ %G en %F IM2_1981_16_1_a4