Nonlinear duality and best approximations in metric linear spaces

DOI10.1016/0021-9045(87)90099-2zbMath0626.41020OpenAlexW2084670064MaRDI QIDQ580612

Klaus Schnatz

Publication date: 1987

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

Full work available at URL: https://doi.org/10.1016/0021-9045(87)90099-2

zbMATH Keywords

algorithmcharacterization of best approximationsKrein-Milman-type theorem

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Locally convex Fréchet spaces and (DF)-spaces (46A04)

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Cites Work

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• Approximationstheorie für metrische lineare Räume
• Beiträge zur Approximationstheorie in metrisierbaren lokalkonvexen Räumen
• Extension of range of functions
• Applications of the Hahn-Banach Theorem in Approximation Theory

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