Finite extremal characterization of strong uniqueness in normed spaces

DOI10.1016/0021-9045(90)90034-NzbMath0733.41035OpenAlexW2030267864MaRDI QIDQ809298

Ryszard Smarzewski

Publication date: 1990

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

Full work available at URL: https://doi.org/10.1016/0021-9045(90)90034-n

zbMATH Keywords

extremal elementsstrongly unique best approximation

Mathematics Subject Classification ID

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

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Cites Work

• Characterizations of strong unicity in approximation theory
• Interpolating subspaces in approximation theory
• A local version of haar's theorem in approximation theory
• Uniqueness and differential characterization of approximations from manifolds of functions
• Uniqueness and Differential Characterization of Approximations from Manifolds of Functions
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