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Numerical Study of Two Sparse AMG-methods
Published online by Cambridge University Press: 15 March 2003
Abstract
A sparse algebraic multigrid method is studied as a cheap and accurate way to compute approximations of Schur complements of matrices arising from the discretization of some symmetric and positive definite partial differential operators. The construction of such a multigrid is discussed and numerical experiments are used to verify the properties of the method.
- Type
- Research Article
- Information
- ESAIM: Mathematical Modelling and Numerical Analysis , Volume 37 , Issue 1 , January 2003 , pp. 133 - 142
- Copyright
- © EDP Sciences, SMAI, 2003