WIDTHS IN $ L_p$ OF CLASSES OF CONTINUOUS AND OF DIFFERENTIABLE FUNCTIONS, AND OPTIMAL METHODS OF CODING AND RECOVERING FUNCTIONS AND THEIR DERIVATIVES

DOI10.1070/IM1982v018n02ABEH001387zbMath0536.41026MaRDI QIDQ3320831

N. P. Kornejchuk

Publication date: 1982

Published in: Mathematics of the USSR-Izvestiya (Search for Journal in Brave)

zbMATH Keywords

Kolmogorov widthslinear widthsGel'fand widths

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Inequalities in approximation (Bernstein, Jackson, Nikol'ski?-type inequalities) (41A17) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46) Harmonic analysis in one variable (42A99)

Related Items

Best linear approximation methods for some classes of analytic functions on the unit disk ⋮ Quadrature and widths