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Kopotun, K.; Leviatan, D.; Shevchuk, I. A. The degree of coconvex polynomial approximation. (English) Zbl 0914.41005 Proc. Am. Math. Soc. 127, No. 2, 409-415 (1999). Reviewer: S.M.Mazhar (Kuwait) MSC: 41A10 41A17 41A25 41A29 PDFBibTeX XMLCite \textit{K. Kopotun} et al., Proc. Am. Math. Soc. 127, No. 2, 409--415 (1999; Zbl 0914.41005) Full Text: DOI