Best approximation of functions on the ball on the weighted Sobolev space equipped with a Gaussian measure

DOI10.1016/j.jat.2009.12.004zbMath1205.41031OpenAlexW2008977056MaRDI QIDQ979034

Xuebo Zhai, He Ping Wang

Publication date: 25 June 2010

Published in: Journal of Approximation Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.jat.2009.12.004

zbMATH Keywords

weighted Sobolev spacebest approximationGaussian measureaverage width

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Rate of convergence, degree of approximation (41A25) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)

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Cites Work

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