Best “Continuous” $n$-Term Approximations in the Spaces $S_\phi ^p$
We find exact values of upper bounds for the best approximations of $q$-ellipsoids by polynomials of degree $n$ in the spaces $S_\phi ^p$ in the case where the approximating polynomials are constructed on the basis of $n$-dimensional subsystems chosen successively from a given orthonormal system ϕ.
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| Date: | 2003 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | Russian English |
| Published: |
Institute of Mathematics, NAS of Ukraine
2003
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| Online Access: | https://umj.imath.kiev.ua/index.php/umj/article/view/3941 |
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| Journal Title: | Ukrains’kyi Matematychnyi Zhurnal |
| Download file: |  |