%0 Journal Article %A M. Sh. Shabozov %A M. A. Abdulkhaminov %T Some inequalities between the best polynomial approximation and averaged finite-difference norms in space $L_2$ %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2021 %P 78-91 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2021_10_a6/ %G ru %F IVM_2021_10_a6