%0 Journal Article %A G. A. Akishev %T Inequalities for the best ``angular'' approximation and the smoothness modulus of a function in the Lorentz space %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 2023 %P 8-24 %V 230 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_2023_230_a1/ %G ru %F INTO_2023_230_a1