Krasniqi, Xh. Z.; Braha, N. L. On the behavior of \(r\)-derivative near the origin of sine series with convex coefficients. (English) Zbl 1214.42001 JIPAM, J. Inequal. Pure Appl. Math. 8, No. 1, Paper No. 22, 6 p. (2007). Summary: We will give the behavior of the \(r\)-derivative near the origin of sine series with convex coefficients. MSC: 42A15 Trigonometric interpolation 42A32 Trigonometric series of special types (positive coefficients, monotonic coefficients, etc.) Keywords:sine series; convex coefficients PDFBibTeX XMLCite \textit{Xh. Z. Krasniqi} and \textit{N. L. Braha}, JIPAM, J. Inequal. Pure Appl. Math. 8, No. 1, Paper No. 22, 6 p. (2007; Zbl 1214.42001) Full Text: EuDML EMIS