Title
Trigonometric orthogonal systems and quadrature formulae
Abstract
Quadrature rules with maximal even trigonometric degree of exactness are considered. We give a brief historical survey on such quadrature rules. Special attention is given on an approach given by Turetzkii [A.H. Turetzkii, On quadrature formulae that are exact for trigonometric polynomials, East J. Approx. 11 (3) (2005) 337-359. Translation in English from Uchenye Zapiski, Vypusk 1 (149). Seria Math. Theory of Functions, Collection of papers, Izdatel'stvo Belgosuniversiteta imeni V.I. Lenina, Minsk, 1959, pp. 31-54]. The main part of the topic is orthogonal trigonometric systems on [0,2@p) (or on [-@p,@p)) with respect to some weight functions w(x). We prove that the so-called orthogonal trigonometric polynomials of semi-integer degree satisfy a five-term recurrence relation. In particular, we study some cases with symmetric weight functions. Also, we present a numerical method for constructing the corresponding quadratures of Gaussian type. Finally, we give some numerical examples. Also, we compare our method with other available methods.
Year
DOI
Venue
2008
10.1016/j.camwa.2008.07.024
Computers & Mathematics with Applications
Keywords
Field
DocType
trigonometric degree,recurrence relation,so-called orthogonal trigonometric polynomial,orthogonality,weights,available method,trigonometric polynomial,trigonometric orthogonal system,quadrature formula,trigonometric degree of exactness,numerical method,quadrature rules of gaussian type,a.h. turetzkii,numerical example,nodes,quadrature rule,trigonometric interpolation,orthogonal trigonometric system,weight function,satisfiability
Gauss–Kronrod quadrature formula,Proofs of trigonometric identities,Discrete mathematics,Mathematical optimization,Differentiation of trigonometric functions,Mathematical analysis,Clenshaw–Curtis quadrature,Trigonometric substitution,Gauss–Jacobi quadrature,Mathematics,Pythagorean trigonometric identity,Trigonometric integral
Journal
Volume
Issue
ISSN
56
11
Computers and Mathematics with Applications
Citations 
PageRank 
References 
2
0.56
10
Authors
3
Name
Order
Citations
PageRank
Gradimir V. Milovanović14511.62
Aleksandar S. Cvetković2194.62
Marija P. Stanić3112.61