6533b86dfe1ef96bd12c947c
RESEARCH PRODUCT
Numerical Study of Two Sparse AMG-methods
Janne Martikainensubject
Numerical AnalysisMathematical optimizationDiscretizationApplied MathematicsNumerical analysisMathematicsofComputing_NUMERICALANALYSISPositive-definite matrixFinite element methodComputational MathematicsMultigrid methodModeling and SimulationComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATIONSchur complementApplied mathematicsPartial derivativeAnalysisMathematicsSparse matrixdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-01 | ESAIM: Mathematical Modelling and Numerical Analysis |