Orthogonal polynomials and Gaussian quadrature rules related to oscillatory weight functions

摘要

In this paper we consider polynomials orthogonal with respect to an oscillatory weight function w(x)=xeimπx on [-1,1], where m is an integer. The existence of such polynomials as well as several of their properties (three-term recurrence relation, differential equation, etc.) are proved. We also consider related quadrature rules and give applications of such quadrature rules to some classes of integrals involving highly oscillatory integrands.