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41A45 Approximation by arbitrary linear expressions (6 articles)

• Kobza, Jiří; Kučera, Radek: Fundamental quadratic splines and applications. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 32 (1993), issue 1, pp. 81-98
• Baronti, Marco; Papini, Pier Luigi: Bicontractive projections in sequence spaces and a few related kinds of maps. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 30 (1989), issue 4, pp. 665-673
• Kopeček, Ivan: A type of continuous projections. (English). Archivum Mathematicum, vol. 19 (1983), issue 4, pp. 209-214
• Stegbuchner, Hans: Zur metrischen Entropie der Lipschitzfunktionen mit vorgegebenen Nullstellen. (German) [On metric entropy of Lipschitz functions with given zeros]. Czechoslovak Mathematical Journal, vol. 28 (1978), issue 2, pp. 286-293
• Šmerk, Jiří: The approximation of functions in the sense of Tchebychev. I. (English). Archivum Mathematicum, vol. 11 (1975), issue 1, pp. 31-51
• Stránská, Carmen: Optimal and Sard approximation. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 16 (1975), issue 3, pp. 567-582