Babenko, K. I. Approximation by trigonometric polynomials in a certain class of periodic functions of several variables. (English. Russian original) Zbl 0102.05301 Sov. Math., Dokl. 1, 672-675 (1960); translation from Dokl. Akad. Nauk SSSR 132, 982-985 (1960). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 ReviewsCited in 40 Documents Keywords:approximation and series expansion PDF BibTeX XML Cite \textit{K. I. Babenko}, Sov. Math., Dokl. 1, 672--675 (1960; Zbl 0102.05301); translation from Dokl. Akad. Nauk SSSR 132, 982--985 (1960) OpenURL