On the invariance of the interpolation points of the discrete \(\ell_1\)- approximation

DOI10.1016/0021-9045(78)90038-2zbMath0393.41001OpenAlexW2015241551MaRDI QIDQ1252478

Uri M. Ascher

Publication date: 1978

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

Full work available at URL: https://doi.org/10.1016/0021-9045(78)90038-2

zbMATH Keywords

Best ApproximationBest L1-Space ApproximantDiscrete L1-Space ApproximationInvariance of the Interpolation PointsSpline L1-Space Approximation

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Interpolation in approximation theory (41A05)

Related Items (1)

A collocation method for parabolic quasilinear problems on general domains

Cites Work

• A collocation method for parabolic quasilinear problems on general domains
• Best \(L^1\) approximation by weak Chebyshev systems and the uniqueness of interpolating perfect splines
• A Moment Problem in L 1 Approximation
• Applications of Linear Programming to Numerical Analysis
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