On an extremal problem of Subbotin concerning finite differences and derivatives

DOI10.1016/0021-9045(79)90048-0zbMath0422.41018OpenAlexW2002417191MaRDI QIDQ1133696

Charles A. Micchelli

Publication date: 1979

Published in: Journal of Approximation Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0021-9045(79)90048-0

zbMATH Keywords

finite differencesextremal problem of Subbotin

Mathematics Subject Classification ID

Spline approximation (41A15) Approximation by positive operators (41A36)

Cites Work

• Best \(L^1\) approximation by weak Chebyshev systems and the uniqueness of interpolating perfect splines
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