Polynomial inequalities, functional spaces and best approximation on the real semiaxis with Laguerre weights

zbMath1036.41007MaRDI QIDQ1866498

Giuseppe Mastroianni

Publication date: 2002

Published in: ETNA. Electronic Transactions on Numerical Analysis (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/123490

zbMATH Keywords

polynomial approximationLagrange interpolationFourier seriesmoduli of smoothnesspolynomial inequalitiesdirect and converse theorems

Mathematics Subject Classification ID

Approximation by polynomials (41A10) Inequalities for trigonometric functions and polynomials (26D05)

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Pointwise estimates for polynomial approximation on the semiaxis ⋮ Orthogonal polynomials for exponential weights \(x^{2\rho} e^{-2Q(x)}\) on [0,\(d\))

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