Doronin, V. G.; Ligun, A. A. Obere Schranken der besten einseitigen Approximationen der Klassen \(W^rL_\Psi\) in der \(L\)-Metrik. (Russian) Zbl 0365.42001 Mat. Zametki 22, 257-268 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 1 Document MSC: 42A10 Trigonometric approximation 41A10 Approximation by polynomials 41A50 Best approximation, Chebyshev systems PDF BibTeX XML Cite \textit{V. G. Doronin} and \textit{A. A. Ligun}, Mat. Zametki 22, 257--268 (1977; Zbl 0365.42001)