Numerical study of two sparse AMG-methods
ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Volume 37 (2003) no. 1, p. 133-142

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.

DOI : https://doi.org/10.1051/m2an:2003016
Classification:  65F10,  65N22
Keywords: algebraic multigrid, Schur complement, Lagrange multipliers
@article{M2AN_2003__37_1_133_0,
author = {Martikainen, Janne},
title = {Numerical study of two sparse AMG-methods},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis - Mod\'elisation Math\'ematique et Analyse Num\'erique},
publisher = {EDP-Sciences},
volume = {37},
number = {1},
year = {2003},
pages = {133-142},
doi = {10.1051/m2an:2003016},
zbl = {1030.65128},
mrnumber = {1972654},
language = {en},
url = {http://www.numdam.org/item/M2AN_2003__37_1_133_0}
}

Martikainen, Janne. Numerical study of two sparse AMG-methods. ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Volume 37 (2003) no. 1, pp. 133-142. doi : 10.1051/m2an:2003016. http://www.numdam.org/item/M2AN_2003__37_1_133_0/

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