Robust Schur complement method for stron
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Boris N. Khoromskij; Gabriel Wittum
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Article
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1999
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John Wiley and Sons
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English
⚖ 214 KB
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We present robust and asymptotically optimal iterative methods for solving 2D anisotropic elliptic equations with strongly jumping coefficients, where the direction of anisotropy may change sharply between adjacent subdomains. The idea of a stable preconditioning for the Schur complement matrix is b