Weighted Polynomial Approximation on the
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A. Kroo; J. Szabados
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Article
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1995
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Elsevier Science
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English
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We study polynomial approximation on the whole real line with weight \(w=e^{-Q}\), where \(Q\) has polynomial growth at infinity. The following are the main problems considered: asymptotics for the Markov factors and for the rate of best approximation of \(|x|\), Jackson-type estimates for the degre