A note on polynomial interpolation at the Chebyshev extrema nodes (Q798546)
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scientific article; zbMATH DE number 3869904
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A note on polynomial interpolation at the Chebyshev extrema nodes |
scientific article; zbMATH DE number 3869904 |
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A note on polynomial interpolation at the Chebyshev extrema nodes (English)
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1984
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Some new properties of the Lebesgue function associated with interpolation at the Chebyshev extrema nodes are established. By estimating the degree of asymmetry of the Lebesgue function in the interval of interest, the estimate of Ehlich and Zeller for the norm of the corresponding interpolation operator is improved.
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Lagrange polynomials
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operator norm
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Lebesgue function
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Chebyshev extrema nodes
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degree of asymmetry
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