Approximation of real-valued functions on the two-dimensional Cartesian products (Q1174760)
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scientific article; zbMATH DE number 9378
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Approximation of real-valued functions on the two-dimensional Cartesian products |
scientific article; zbMATH DE number 9378 |
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Approximation of real-valued functions on the two-dimensional Cartesian products (English)
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25 June 1992
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The approximation of functions \(f(x,y)\) of two variables which are periodic in \(x\) is investigated by ``semi-trigonometric'' polynomials \(T_ n(x,y)\) which are functions that are trigonometric polynomials of degree at most \(n\) in \(x\) for almost every \(y\). The definitions and the formulation of the results are very complicated.
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semi-trigonometric polynomials
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approximation
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two variables
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trigonometric polynomials
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0.7813778519630432
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