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Quadrature formula of singular integral based on rational interpolation
Authors:Du Jin-yuan  Zhang Meng
Institution:(1) School of Mathematics and Statistics, Wuhan University, 430072 Wuhan Hubei, China
Abstract:We construct a quadrature formula of the singular integral with the Chebyshev weight of the second kind by using Lagrange interpolation based on the rational system {1/(x-a1),1/(x-a2),...}, and both the remainder and convergence of the quadrature formula established here are discussed. Our results extend some classical ones.
Keywords:rational system  generalized Chebyshev polynomial  Lagrange interpolation  singular quadrature formula
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