Error estimates for Gaussian quadratures
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Gradimir V. Milovanović; Miodrag M. Spalević; Miroslav S. Pranić
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Article
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2009
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Elsevier Science
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English
⚖ 417 KB
For analytic functions the remainder term of Gaussian quadrature formula and its Kronrod extension can be represented as a contour integral with a complex kernel. We study these kernels on elliptic contours with foci at the points ±1 and the sum of semi-axes > 1 for the Chebyshev weight functions of