Storozhenko, Eh. A. Rate of approximation of functions by de la Vallee-Poussin means of their orthogonal expansions. (Russian) Zbl 0177.31901 Mat. Zametki 2, 175-186 (1967). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:approximation and series expansion PDF BibTeX XML Cite \textit{Eh. A. Storozhenko}, Mat. Zametki 2, 175--186 (1967; Zbl 0177.31901)