Integrals and series of elementary functions
Integrals and series of elementary functions
How to generate unknown orthogonal polynomials out of known orthogonal polynomials
Journal of Computational and Applied Mathematics - Orthogonal polynomials and numerical methods
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Integration of periodic functions on the real line with an even rational weight function is considered. A transformation method of such integrals to the integrals on (-1, 1) with respect to the Szegö-Bernstein weights and a construction of the corresponding Gaussian quadrature formulas are given. The recursion coefficients in the three-term recurrence relation for the corresponding orthogonal polynomials were obtained in an analytic form. Numerical examples are also included.