Estimates of Freud-Christoffel functions for some weights with the whole real line as support (Q1070475)

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scientific article; zbMATH DE number 3935683
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Estimates of Freud-Christoffel functions for some weights with the whole real line as support
scientific article; zbMATH DE number 3935683

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    Estimates of Freud-Christoffel functions for some weights with the whole real line as support (English)
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    1985
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    Upper and lower bounds are derived for Christoffel functions and some of their generalizations associated with weights supported on the whole real line. The new results presented are of interest primarily for weights of the form \(W(x):=\exp (-Q(x)),\) where Q(x) is of faster than polynomial growth at \(\infty\).
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    Freud weights
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    upper bounds
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    lower bounds
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    Christoffel functions
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