Numerical study of two sparse AMG-methods
ESAIM: Modélisation mathématique et analyse numérique, Tome 37 (2003) no. 1, pp. 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 : 10.1051/m2an:2003016
Classification : 65F10, 65N22
Mots-clés : algebraic multigrid, Schur complement, Lagrange multipliers 
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     title = {Numerical study of two sparse {AMG-methods}},
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Martikainen, Janne. Numerical study of two sparse AMG-methods. ESAIM: Modélisation mathématique et analyse numérique, Tome 37 (2003) no. 1, pp. 133-142. doi : 10.1051/m2an:2003016. http://www.numdam.org/articles/10.1051/m2an:2003016/

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