On approximation of a class by another class and extremal subspaces in \(L_ 1\).

DOI10.1007/BF02350808zbMath0481.42004OpenAlexW5358873MaRDI QIDQ1161872

N. P. Kornejchuk, A. A. Ligun

Publication date: 1981

Published in: Analysis Mathematica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf02350808

zbMATH Keywords

duality relationrearrangements of functions

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Rate of convergence, degree of approximation (41A25) Approximation by other special function classes (41A30)

Related Items

Development of studies on the exact solution of extremal problems of the theory of best approximation ⋮ Development of studies on the exact solution of extremal problems of the theory of best approximation ⋮ Exact values of the best \((\alpha,\beta)\)-approximations for the classes of convolutions with kernels that do not increase the number of sign changes ⋮ Nonsymmetric approximations of a class by another class in the integral metric

Cites Work

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• Stone Duality for Nominal Boolean Algebras with И
• The Brauer-Manin Obstruction and III[2]