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AMGE Based on Element Agglomeration
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Journal Article
AMGE Based on Element Agglomeration
2002
Overview
This paper contains the main ideas for an AMGe (algebraic multigrid for finite elements) method based on element agglomeration. In the method, coarse grid elements are formed by agglomerating fine grid elements. Compatible interpolation operators are constructed which yield coarse grid basis functions with a minimal energy property. Heuristics based on interpolation quality measures are used to guide the agglomeration procedure. The performance of the resulting method is demonstrated in two-level numerical experiments.
Publisher
Society for Industrial and Applied Mathematics
