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Chebyshev-type methods and preconditioning techniques
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DOI：10.1016/j.amc.2011.05.036.png)
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Abstract
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Recently, a Newton's iterative method is attracting more and more attention from various fields of science and engineering. This method is generally quadratically convergent. In this paper, some Chebyshev-type methods with the third order convergence are analyzed in detail and used to compute approximate inverse preconditioners for solving the linear system Ax = b. Theoretic analysis and numerical experiments show that Chebyshev's method is more effective than Newton's one in the case of constructing approximate inverse preconditioners. (C) 2011 Elsevier Inc. All rights reserved.
Keywords:
Chebyshev's method
Approximate inverse preconditioner
Convergent
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3.4
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2.3W
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3.3W
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