作者
Arne Nägel, Robert D Falgout, Gabriel Wittum
发表日期
2008/5/1
期刊
Computing and Visualization in Science
卷号
11
期号
3
页码范围
159-167
出版商
Springer-Verlag
简介
Solving linear systems arising from partial differential equations, multigrid and multilevel methods have proven optimal complexity and efficiency properties. Due to shortcomings of geometric approaches, algebraic multigrid methods have been developed. One example is the filtering algebraic multigrid method introduced by C. Wagner. This paper proposes a variant of Wagner’s method with substantially improved robustness properties. It is shown, how the class of filtering multigrid methods can be integrated into an adaptive, self-correcting framework. Numerical experiments, which are performed for a class of scaled operators, underline the results.
引用总数
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A Nägel, RD Falgout, G Wittum - Computing and Visualization in Science, 2008