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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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Exact cubature rules for symmetric functions
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by J. F. van Diejen and E. Emsiz HTML | PDF
Math. Comp. 88 (2019), 1229-1249 Request permission

Abstract:

We employ a multivariate extension of the Gauss quadrature formula, originally due to Berens, Schmid, and Xu [Arch. Math. (Basel) 64 (1995), pp. 26–32], so as to derive cubature rules for the integration of symmetric functions over hypercubes (or infinite limiting degenerations thereof) with respect to the densities of unitary random matrix ensembles. Our main application concerns the explicit implementation of a class of cubature rules associated with the Bernstein-Szegö polynomials, which permit the exact integration of symmetric rational functions with prescribed poles at coordinate hyperplanes against unitary circular Jacobi distributions stemming from the Haar measures on the symplectic and the orthogonal groups.
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Additional Information
  • J. F. van Diejen
  • Affiliation: Instituto de Matemática y Física, Universidad de Talca, Casilla 747, Talca, Chile
  • MR Author ID: 306808
  • ORCID: 0000-0002-5410-8717
  • Email: diejen@inst-mat.utalca.cl
  • E. Emsiz
  • Affiliation: Facultad de Matemáticas, Pontificia Universidad Católica de Chile, Casilla 306, Correo 22, Santiago, Chile
  • MR Author ID: 781405
  • Email: eemsiz@mat.uc.cl
  • Received by editor(s): November 13, 2017
  • Received by editor(s) in revised form: April 5, 2018
  • Published electronically: October 2, 2018
  • Additional Notes: This work was supported in part by the Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) Grants #1170179 and #1181046.
  • © Copyright 2018 American Mathematical Society
  • Journal: Math. Comp. 88 (2019), 1229-1249
  • MSC (2010): Primary 65D32; Secondary 05E05, 15B52, 33C52, 33D52, 65T40
  • DOI: https://doi.org/10.1090/mcom/3380
  • MathSciNet review: 3904144