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Convergence theorems for parallel alternating iterative methods

delete2004-01-01
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PRE
AI
J
Joan‐Josep Climent
C
Carmen Perea
L
Leandro Tortosa
A
Antonio Zamora
DOI:10.1016/S0096-3003(02)00916-5delete
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Abstract

Abstract

En 中文
The parallel multisplitting nonstationary iterative Model A was introduced by Bru, Elsner, and Neumann [Linear Algebra Appl. 103 (1988) 175-192] for solving nonsingular linear system Ax = b using a weak nonnegative multisplitting of the first type. In this paper new results using a weak nonnegative multisplitting of the second type are introduced when A is a monotone matrix, and using P-regular multisplitting when A is a symmetric positive definite matrix. Combining Model A and alternating iterative methods, two new models of parallel multisplitting nonstationary iterations are introduced. It is shown that when matrix A is monotone and the multisplittings are weak nonnegative of the first or second type, both models lead to convergent schemes. When matrix A is symmetric positive definite and the multisplittings are P-regular, the schemes are also convergent. (C) 2003 Elsevier Inc. All rights reserved.
Keywords:
nonsingular matrix
iterative method
splitting
multisplitting
alternating method
stationary method
nonstationary method
convergence conditions
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Journal

Applied Mathematics and Computation cover
Applied Mathematics and Computation
IF:
3.4
Papers:
2.3W
Citations:
3.3W

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