On the dense unbounded divergence of the discrete best approximation

DOI10.11650/tjm.18.2014.3743zbMath1357.41029OpenAlexW2002934010MaRDI QIDQ514737

Alexandru Ioan Mitrea

Publication date: 9 March 2017

Published in: Taiwanese Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.11650/tjm.18.2014.3743

zbMATH Keywords

Chebyshev polynomialssuperdense setChebyshev discrete best approximationcondensation of singularities

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Approximation by polynomials (41A10) Banach spaces of continuous, differentiable or analytic functions (46E15)

Cites Work

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• Condensation of singularities and divergence results in approximation theory
• On the unbounded divergence in the best approximation on equidistant nodes
• Two-sided estimates of projection operators norm, with applications to deformable models
• On best simultaneous approximation

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