On best multivariate trigonometric approximations (Q1376006)
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scientific article; zbMATH DE number 1106682
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On best multivariate trigonometric approximations |
scientific article; zbMATH DE number 1106682 |
Statements
On best multivariate trigonometric approximations (English)
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21 January 1998
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The author proves two theorems. These theorems present a new characterization of the smoothness properties of functions for the -- so-called -- best hyperbolic cross approximation. This characterization is given in terms of higher-order mixed differences of their higher-order mixed integrals.
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trigonometric approximation
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several variables
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smoothness
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best hyperbolic cross approximation
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