Exact errors of best approximation for complex-valued periodic functions

DOI10.1070/SM8881zbMath1406.41009OpenAlexW2748631551MaRDI QIDQ4576885

Michael I. Ganzburg

Publication date: 11 July 2018

Published in: Sbornik: Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1070/sm8881

zbMATH Keywords

best approximationtrigonometric polynomialcomplex-valued functionconvolution classesNagy's theorem

Mathematics Subject Classification ID

Approximation by polynomials (41A10) Best constants in approximation theory (41A44)

Related Items (2)

Sharp constants of approximation theory. IV: Asymptotic relations in general settings ⋮ Exact errors of best approximation for complex-valued nonperiodic functions

Cites Work

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• Some trigonometric extremal functions and the Erdos-Turan type inequalities
• Approximation in the Metric of L 1 (X,μ)

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