Gaussian quadrature formulas and Laguerre-Perron's equation

  • S. El Hajji
  • L. Touijrat


LetI(f) be the integral defined by:I(f) = ∫ a b f(x)w(x)dx withf a given function,w a nonclassical weight function and [a, b] an interval of IR (of finite or infinite length). We propose to calculate the approximate value ofI(f) by using a new scheme for deriving a non-linear system, satisfied by the three-term recurrence coefficients of semi-classical orthogonal polynomials. Finally we studies the Stability and complexity of this scheme.

AMS Mathematics Subject Classification


Key words and phrases

Semi-classical orthogonal polynomials Jacobi matrix Laguerre-Perron's equation nonclassical weight function stability of the algorithm 


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Copyright information

© Korean Society for Computational and Applied Mathematics 2005

Authors and Affiliations

  1. 1.Departement of Mathematics and data processingMohammed V Agdal University, Sciences FaculteRabatMorocco

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