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DPMHSS-based iteration methods for solving weakly nonlinear systems with complex coefficient matrices

  • Min-Hong Chen
  • , Wei Dou
  • , Qing Biao Wu (Lead / Corresponding author)

Research output: Contribution to journal › Article › peer-review

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Abstract

In this paper, we aim at giving efficient iterative methods for solving large sparse weakly nonlinear systems with complex symmetric coefficient matrices. Based on the separable property of the linear and nonlinear terms, and by combining with the double-parameter preconditioned MHSS (DPMHSS) method for linear systems, we propose the Picard-DPMHSS and nonlinear DPMHSS-like methods. Under suitable conditions, we establish convergence theorems for the Picard-DPMHSS and nonlinear DPMHSS-like methods. Numerical implementations show that both Picard-DPMHSS and nonlinear DPMHSS-like iteration methods are effective solvers for large sparse weakly nonlinear systems.

Original languageEnglish
Pages (from-to)328-341
Number of pages14
JournalApplied Numerical Mathematics
Volume146
Early online date19 Jul 2019
DOIs
Publication statusPublished - Dec 2019

Keywords

  • Convergence theorem
  • DPMHSS iteration method
  • Inner-outer iteration scheme
  • Nonlinear iteration scheme
  • Weakly nonlinear system

ASJC Scopus subject areas

  • Numerical Analysis
  • Computational Mathematics
  • Applied Mathematics

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