Approximation of functions from classes \(W^{r}_{\beta,\infty}\) by three-harmonic Poisson integrals (Q2850457)
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scientific article; zbMATH DE number 6212599
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Approximation of functions from classes \(W^{r}_{\beta,\infty}\) by three-harmonic Poisson integrals |
scientific article; zbMATH DE number 6212599 |
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26 September 2013
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asymptotic approximation
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Poisson integral
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Approximation of functions from classes \(W^{r}_{\beta,\infty}\) by three-harmonic Poisson integrals (English)
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The authors deal with the problem of approximation with three-harmonic Poisson integrals of functions belonging to the space \(W^{r}_{\beta,\infty}\). Asymptotic equalities for exact upper bounds of deviation of three-harmonic Poisson integrals from the functions mentioned above in uniform metric are obtained.
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0.949137568473816
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0.9474574327468872
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0.9088189005851746
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0.8930106163024902
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