Jahn, Thomas; Ullrich, Tino On the optimal constants in the two-sided Stechkin inequalities. (English) Zbl 1473.41002 J. Approx. Theory 269, Article ID 105607, 25 p. (2021). Reviewer: D. K. Ugulava (Tbilisi) MSC: 41A17 41A44 46E30 PDFBibTeX XMLCite \textit{T. Jahn} and \textit{T. Ullrich}, J. Approx. Theory 269, Article ID 105607, 25 p. (2021; Zbl 1473.41002) Full Text: DOI arXiv
Vitale, Richard A. \(L_p\) metrics for compact convex sets. (English) Zbl 0595.52005 J. Approximation Theory 45, 280-287 (1985). Reviewer: C. Castaing (Montpellier) MSC: 52A20 52A22 41A99 46E30 PDFBibTeX XMLCite \textit{R. A. Vitale}, J. Approx. Theory 45, 280--287 (1985; Zbl 0595.52005) Full Text: DOI