%0 Journal Article %A E. D. Alferova %A A. Yu. Popov %T On the Positivity of Average Sums of Sine Series with Monotone Coefficients %J Matematičeskie zametki %D 2021 %P 630-634 %V 110 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2021_110_4_a12/ %G ru %F MZM_2021_110_4_a12