Aggregation based on graph matching and inexact coarse grid solve for algebraic multigrid

Details Aggregation based on graph matching and inexact coarse grid solve for algebraic multigrid Aggregation based on graph matching and inexact coarse grid solve for algebraic multigrid

2011-05-17

arxiv.org/abs/1105.3468v5

Mathematics

Numerical Analysis

Update 10th June 2011: Some errors in the proof corrected/removed; a figure on jumps added; some more figures with coarser gri

Scientific paper

A graph based matching is used to construct aggregation for algebraic
multigrid. Effects of inexact coarse grid solve is analyzed numerically for a
highly discontinuous convection diffusion coefficient matrix and problems from
Florida matrix market collection. The proposed strategy is found to be more
robust compared to a classical AMG approach.

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