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Best \(L_2\) local approximation. (English) Zbl 0383.41020


MSC:

41A50 Best approximation, Chebyshev systems
41A10 Approximation by polynomials
41A65 Abstract approximation theory (approximation in normed linear spaces and other abstract spaces)
Full Text: DOI

References:

[1] Chui, C. K.; Shisha, O.; Smith, P. W., Padé approximants as limits of best rational approximants, J. Approximation Theory, 12, 201-204 (1974) · Zbl 0288.41007
[2] Chui, C. K.; Shisha, O.; Smith, P. W., Best local approximation, J. Approximation Theory, 15, 371-381 (1975) · Zbl 0314.41016
[3] Karlin, S. J.; Studden, W. J., Tschebycheff systems: with applications in analysis and statistics, (Pure and Applied Mathematics, Vol. XV (1966), Wiley: Wiley New York) · Zbl 0153.38902
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