Voitovych, V. A. Estimates for the approximations of the classes of analytic functions by interpolation analogs of the de-la-Vallée-Poussin sums. (English. Ukrainian original) Zbl 1308.30042 Ukr. Math. J. 66, No. 1, 50-65 (2014); translation from Ukr. Mat. Zh. 66, No. 1, 49-62 (2014). MSC: 30E10 PDFBibTeX XMLCite \textit{V. A. Voitovych}, Ukr. Math. J. 66, No. 1, 50--65 (2014; Zbl 1308.30042); translation from Ukr. Mat. Zh. 66, No. 1, 49--62 (2014) Full Text: DOI
Musienko, A. P.; Serdyuk, A. S. Lebesgue-type inequalities for the de la Vallée-Poussin sums on sets of entire functions. (English. Ukrainian original) Zbl 1294.30079 Ukr. Math. J. 65, No. 5, 709-722 (2013); translation from Ukr. Mat. Zh. 65, No. 5, 642-653 (2013). MSC: 30E10 42A10 PDFBibTeX XMLCite \textit{A. P. Musienko} and \textit{A. S. Serdyuk}, Ukr. Math. J. 65, No. 5, 709--722 (2013; Zbl 1294.30079); translation from Ukr. Mat. Zh. 65, No. 5, 642--653 (2013) Full Text: DOI
Musienko, A. P.; Serdyuk, A. S. Lebesgue-type inequalities for the de la Valée-Poussin sums on sets of analytic functions. (English. Ukrainian original) Zbl 1294.30078 Ukr. Math. J. 65, No. 4, 575-592 (2013); translation from Ukr. Mat. Zh. 65, No. 4, 522-537 (2013). MSC: 30E10 42A10 PDFBibTeX XMLCite \textit{A. P. Musienko} and \textit{A. S. Serdyuk}, Ukr. Math. J. 65, No. 4, 575--592 (2013; Zbl 1294.30078); translation from Ukr. Mat. Zh. 65, No. 4, 522--537 (2013) Full Text: DOI arXiv
Serdyuk, A. S.; Ovsii, Ie. Yu. Uniform approximation of Poisson integrals of functions from the class \(H_\omega\) by de la Vallée Poussin sums. (English) Zbl 1274.41040 Anal. Math. 38, No. 4, 305-325 (2012). MSC: 41A30 PDFBibTeX XMLCite \textit{A. S. Serdyuk} and \textit{Ie. Yu. Ovsii}, Anal. Math. 38, No. 4, 305--325 (2012; Zbl 1274.41040) Full Text: DOI arXiv