Two-grid methods for banded linear systems from DCT III algebra

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

6 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)241-249
Journal / PublicationNumerical Linear Algebra with Applications
Volume12
Issue number2-3
Online published4 Oct 2004
Publication statusPublished - Mar 2005
Externally publishedYes

Abstract

We describe a two-grid and a multigrid method for linear systems whose coefficient matrices are point or block matrices from the cosine algebra generated by a polynomial. We show that the convergence rate of the two-grid method is constant independent of the size of the given matrix. Numerical examples from differential and integral equations are given to illustrate the convergence of both the two-grid and the multigrid method.

Research Area(s)

  • Band matrices, DCT-III matrix algebra, Multigrid method, Two-grid method

Citation Format(s)

Two-grid methods for banded linear systems from DCT III algebra. / Chan, R. H.; Serra-Capizzano, S.; Tablino-Possio, C.
In: Numerical Linear Algebra with Applications, Vol. 12, No. 2-3, 03.2005, p. 241-249.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review