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An extension to rational functions of a theorem of J. L. Walsh on differences of interpolating polynomials. (English) Zbl 0485.41003

41A05 Interpolation in approximation theory
41A10 Approximation by polynomials
41A20 Approximation by rational functions
41A21 Padé approximation
Zbl 0447.30020
Full Text: DOI EuDML
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