Rational Szego quadratures associated with Chebyshev weight functions

نویسندگان

  • Adhemar Bultheel
  • Ruymán Cruz-Barroso
  • Karl Deckers
  • Pablo González-Vera
چکیده

In this paper we characterize rational Szegő quadrature formulas associated with Chebyshev weight functions, by giving explicit expressions for the corresponding para-orthogonal rational functions and weights in the quadratures. As an application, we give characterizations for Szegő quadrature formulas associated with rational modifications of Chebyshev weight functions. Some numerical experiments are finally presented.

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عنوان ژورنال:
  • Math. Comput.

دوره 78  شماره 

صفحات  -

تاریخ انتشار 2009