On multivariate approximation by Meyer-König-Zeller type polynomials.
Jiang, Tianzi (1998)
Southwest Journal of Pure and Applied Mathematics [electronic only]
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Jiang, Tianzi (1998)
Southwest Journal of Pure and Applied Mathematics [electronic only]
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A. Offord (1948)
Fundamenta Mathematicae
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Vugar E. Ismailov (2007)
Studia Mathematica
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The approximation in the uniform norm of a continuous function f(x) = f(x₁,...,xₙ) by continuous sums g₁(h₁(x)) + g₂(h₂(x)), where the functions h₁ and h₂ are fixed, is considered. A Chebyshev type criterion for best approximation is established in terms of paths with respect to the functions h₁ and h₂.
S. Paszkowski
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CONTENTSIntroduction..................................................................................................................................................................................... 3CHAPTER I. Basic properties of the best polynomials1. Existence, uniqueness and the characteristic properties of the best polynomials............................................................................... 62. The direct application of the theorem concerning the (n, F)-points to...
H. Werner (1986)
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Banach Journal of Mathematical Analysis [electronic only]
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Banach Center Publications
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