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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

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Kronrod extensions with multiple nodes of quadrature formulas for Fourier coefficients
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by Gradimir V. Milovanović and Miodrag M. Spalević PDF
Math. Comp. 83 (2014), 1207-1231 Request permission

Abstract:

We continue with analyzing quadrature formulas of high degree of precision for computing the Fourier coefficients in expansions of functions with respect to a system of orthogonal polynomials, started recently by Bojanov and Petrova [Quadrature formulae for Fourier coefficients, J. Comput. Appl. Math. 231 (2009), 378–391] and we extend their results. Construction of new Gaussian quadrature formulas for the Fourier coefficients of a function, based on the values of the function and its derivatives, is considered. We prove the existence and uniqueness of Kronrod extensions with multiple nodes of standard Gaussian quadrature formulas with multiple nodes for several weight functions, in order to construct some new generalizations of quadrature formulas for the Fourier coefficients. For the quadrature formulas for the Fourier coefficients based on the zeros of the corresponding orthogonal polynomials we construct Kronrod extensions with multiple nodes and highest algebraic degree of precision. For this very desirable kind of extension there do not exist any results in the theory of standard quadrature formulas.
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Additional Information
  • Gradimir V. Milovanović
  • Affiliation: Mathematical Institute, Serbian Academy of Sciences and Arts, Kneza Mihaila 36, 11000 Belgrade, Serbia
  • Email: gvm@mi.sanu.ac.rs
  • Miodrag M. Spalević
  • Affiliation: Department of Mathematics, University of Beograd, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade 35, Serbia
  • MR Author ID: 600543
  • Email: mspalevic@mas.bg.ac.rs
  • Received by editor(s): February 1, 2012
  • Received by editor(s) in revised form: August 9, 2012, and September 4, 2012
  • Published electronically: August 28, 2013
  • Additional Notes: This work was supported in part by the Serbian Ministry of Education and Science (Research Projects: “Approximation of integral and differential operators and applications” (#174015) & “Methods of numerical and nonlinear analysis with applications” (#174002)).

  • Dedicated: Dedicated to the Memory of Professor Borislav Bojanov (1944–2009)
  • © Copyright 2013 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 83 (2014), 1207-1231
  • MSC (2010): Primary 41A55; Secondary 65D30, 65D32
  • DOI: https://doi.org/10.1090/S0025-5718-2013-02761-5
  • MathSciNet review: 3167456