Tchebycheff approximation in several variables

Tchebycheff approximation in several variables
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by John R. Rice

Trans. Amer. Math. Soc. 109 (1963), 444-466

DOI: https://doi.org/10.1090/S0002-9947-1963-0157165-0

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References

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I polinomi d’approssimozione di Tchebychev

Sur les polynomes d’approximation à une variable complexe

Leçons sur l’approximation des fonctions d’une variable réele

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T. J. Rivlin and H. S. Shapiro, A unified approach to certain problems of approximation and minimization, J. Soc. Indust. Appl. Math. 9 (1961), 670–699. MR 133636