Bajborodov, S. P. On the approximation of functions of several variables by de la Vallee Poussin rectangular sums. (English. Russian original) Zbl 0432.42018 Sov. Math., Dokl. 20, 1241-1243 (1979); translation from Dokl. Akad. Nauk SSSR 249, 265-267 (1979). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 42B99 Harmonic analysis in several variables 42A10 Trigonometric approximation 42A24 Summability and absolute summability of Fourier and trigonometric series Keywords:variances; approximation; de la Vallee Poussin rectangular sum PDF BibTeX XML Cite \textit{S. P. Bajborodov}, Sov. Math., Dokl. 20, 1241--1243 (1979; Zbl 0432.42018); translation from Dokl. Akad. Nauk SSSR 249, 265--267 (1979)