Title
An application of Szego polynomials to the computation of certain weighted integrals on the real line
Abstract
In this paper, a new approach in the estimation of weighted integrals of periodic functions on unbounded intervals of the real line is presented by considering an associated weight function on the unit circle and making use of both Szegő and interpolatory type quadrature formulas. Upper bounds for the estimation of the error are considered along with some examples and applications related to the Rogers-Szegő polynomials, the evaluation of the Weierstrass operator, the Poisson kernel and certain strong Stieltjes weight functions. Several numerical experiments are finally carried out.
Year
DOI
Venue
2009
10.1007/s11075-009-9273-4
Numerical Algorithms
Keywords
Field
DocType
Gaussian quadrature formulas,Szegő polynomials,Szegő quadrature formulas,Interpolatory type quadrature formulas,Error bounds
Gauss–Kronrod quadrature formula,Mathematical optimization,Weight function,Mathematical analysis,Numerical integration,Tanh-sinh quadrature,Clenshaw–Curtis quadrature,Unit circle,Gauss–Jacobi quadrature,Gaussian quadrature,Mathematics
Journal
Volume
Issue
ISSN
52
3
1017-1398
Citations 
PageRank 
References 
1
0.35
6
Authors
3
Name
Order
Citations
PageRank
Ruymán Cruz-Barroso1254.75
Pablo GonzáLez-Vera210017.26
F. Perdomo-Pío371.02