%0 Journal Article %A N. Ph. Alexiadis %T Closed classes in the functional system of polynomials with real coefficients %J Čebyševskij sbornik %D 2023 %P 5-14 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2023_24_1_a0/ %G ru %F CHEB_2023_24_1_a0