On uniqueness of bestL1-approximation in sobolev spaces

DOI10.1080/01630569208816459zbMath0765.41023OpenAlexW106721003MaRDI QIDQ4029128

András Kroó, John J. Swetits

Publication date: 7 March 1993

Published in: Numerical Functional Analysis and Optimization (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/01630569208816459

zbMATH Keywords

uniqueness\(A\)-propertyHaar property

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)

Related Items (1)

Monotonicity and best approximation in Orlicz--Sobolev spaces with the Luxemburg norm

Cites Work

• Nonuniqueness of simultaneous approximation by algebraic polynomials
• Equioscillation under nonuniqueness in the approximation of continuous functions
• Uniqueness of best approximation of a function and its derivatives

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