%0 Journal Article %A V. D. Lyakhovsky %T Chebyshev polynomials and the~proper decomposition of functions %J Teoretičeskaâ i matematičeskaâ fizika %D 2019 %P 259-268 %V 200 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2019_200_2_a6/ %G ru %F TMF_2019_200_2_a6