Stranska, C. Optimal and Sard approximation. (English) Zbl 0313.41007 Commentat. Math. Univ. Carol. 16, 567-582 (1975). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 41A45 Approximation by arbitrary linear expressions 41A55 Approximate quadratures 41A50 Best approximation, Chebyshev systems 41A65 Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) PDFBibTeX XMLCite \textit{C. Stranska}, Commentat. Math. Univ. Carol. 16, 567--582 (1975; Zbl 0313.41007) Full Text: EuDML