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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.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Data-sparse approximation to a class of operator-valued functions
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by Ivan P. Gavrilyuk, Wolfgang Hackbusch and Boris N. Khoromskij PDF
Math. Comp. 74 (2005), 681-708 Request permission

Abstract:

In earlier papers we developed a method for the data-sparse approximation of the solution operators for elliptic, parabolic, and hyperbolic PDEs based on the Dunford-Cauchy representation to the operator-valued functions of interest combined with the hierarchical matrix approximation of the operator resolvents. In the present paper, we discuss how these techniques can be applied to approximate a hierarchy of the operator-valued functions generated by an elliptic operator $\mathcal {L}$.
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Additional Information
  • Ivan P. Gavrilyuk
  • Affiliation: Berufsakademie Thüringen, Am Wartenberg 2, D-99817 Eisenach, Germany
  • Email: ipg@ba-eisenach.de
  • Wolfgang Hackbusch
  • Affiliation: Max-Planck-Institute for Mathematics in the Sciences, Inselstr. 22-26, D-04103 Leipzig, Germany
  • Email: wh@mis.mpg.de
  • Boris N. Khoromskij
  • Affiliation: Max-Planck-Institute for Mathematics in the Sciences, Inselstr. 22-26, D-04103 Leipzig, Germany
  • Email: bokh@mis.mpg.de
  • Received by editor(s): April 10, 2003
  • Published electronically: August 23, 2004
  • © Copyright 2004 American Mathematical Society
  • Journal: Math. Comp. 74 (2005), 681-708
  • MSC (2000): Primary 65F50, 65F30; Secondary 15A24, 15A99
  • DOI: https://doi.org/10.1090/S0025-5718-04-01703-X
  • MathSciNet review: 2114643