Orthogonal rational functions and quadrature on the real half line

نویسندگان

  • Adhemar Bultheel
  • Pablo González-Vera
  • Erik Hendriksen
  • Olav Njåstad
چکیده

In this paper we generalize the notion of orthogonal Laurent polynomials to orthogonal rational functions. Orthogonality is considered with respect to a measure on the positive real line. From this, Gauss-type quadrature formulas are derived and multipoint Padé approximants for the Stieltjes transform of the measure. Convergence of both the quadrature formula and the multipoint Padé approximants is discussed.

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عنوان ژورنال:
  • J. Complexity

دوره 19  شماره 

صفحات  -

تاریخ انتشار 2003