Approximation in weighted Lorentz spaces On moduli of smoothness and approximation by trigonometric polynomials in weighted Lorentz spaces

DOI10.15672/HJMS.20164517215zbMath1370.41051OpenAlexW2347189166MaRDI QIDQ5348464

Sadulla Z. Jafarov

Publication date: 16 August 2017

Published in: Hacettepe Journal of Mathematics and Statistics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.15672/hjms.20164517215

zbMATH Keywords

best approximationmoduli of smoothnessMuckenhoupt weightweighted Lorentz spacestrigonometric approximation

Mathematics Subject Classification ID

Spaces of measurable functions ((L^p)-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.) (46E30) Trigonometric approximation (42A10) Best approximation, Chebyshev systems (41A50)

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Gadjieva's conjecture, K -functionals, and some applications in weighted Lebesgue spaces

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