Abstract
An unimprovable lower estimate of the upper limit of the ratio of the sum of sine series with monotone coefficients to its majorant is obtained.
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References
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Original Russian Text © A.Yu. Popov, A.P. Solodov, 2014, published in Vestnik Moskovskogo Universiteta, Matematika. Mekhanika, 2014, Vol. 69, No. 4, pp. 51–55.
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Popov, A.Y., Solodov, A.P. Exact lower estimate of the upper limit of the ratio of the sum of sine series with monotone coefficients to its majorant. Moscow Univ. Math. Bull. 69, 169–173 (2014). https://doi.org/10.3103/S0027132214040056
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DOI: https://doi.org/10.3103/S0027132214040056