Nonsymmetric approximations of a class by a class defined by means of a linear differential operator

DOI10.1007/BF01099229zbMath0722.42002OpenAlexW1995016316MaRDI QIDQ756062

O. V. Polyakov

Publication date: 1990

Published in: Ukrainian Mathematical Journal (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01099229

zbMATH Keywords

comparison theoremsbest approximationlinear differential operator\(\Sigma \) -rearrangements

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Best approximation, Chebyshev systems (41A50)

Related Items (1)

Completeness of orthogonal systems in asymmetric spaces with sign-sensitive weight

Cites Work

• Nonsymmetric approximations of a class by another class in the integral metric

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