Geodesic
Refinement of Estimates of Sums of Sine Series with Monotone Coefficients and Cosine Series with Convex Coefficients
Matematičeskie zametki, Tome 109 (2021) no. 5, pp. 768-780

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The paper refines the currently known estimates of sums of sine series with monotone coefficients, as well as the upper bound for the sum of the cosine series with convex coefficients.
Keywords: sine series, cosine series
Mots-clés : monotone coefficients. 
A. Yu. Popov. Refinement of Estimates of Sums of Sine Series with Monotone Coefficients and Cosine Series with Convex Coefficients. Matematičeskie zametki, Tome 109 (2021) no. 5, pp. 768-780. http://geodesic.mathdoc.fr/item/MZM_2021_109_5_a8/
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     title = {Refinement of {Estimates} of {Sums} of {Sine} {Series} with {Monotone} {Coefficients} and {Cosine} {Series} with {Convex} {Coefficients}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {768--780},
     year = {2021},
     volume = {109},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2021_109_5_a8/}
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