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Restricted Additive Schwarz Preconditioner for Elliptic Equations with Jump Coefficients
Published online by Cambridge University Press: 19 September 2016
Abstract
This paper provides a proof of robustness of the restricted additive Schwarz preconditioner with harmonic overlap (RASHO) for the second order elliptic problems with jump coefficients. By analyzing the eigenvalue distribution of the RASHO preconditioner, we prove that the convergence rate of preconditioned conjugate gradient method with RASHO preconditioner is uniform with respect to the large jump and meshsize.
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- Type
- Research Article
- Information
- Advances in Applied Mathematics and Mechanics , Volume 8 , Issue 6 , December 2016 , pp. 1072 - 1083
- Copyright
- Copyright © Global-Science Press 2016
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