Best uniform polynomial approximation of
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Mehdi Dehghan; M.R. Eslahchi
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Article
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2010
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Elsevier Science
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English
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In this research paper using the Chebyshev expansion, we explicitly determine the best uniform polynomial approximation out of P qn (the space of polynomials of degree at most qn) to a class of rational functions of the form 1/(T q (a) ยฑ T q (x)) on [-1, 1], where T q (x) is the first kind of Chebys