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An accelerated Homotopy-Perturbation-Kaczmarz method for solving nonlinear inverse problems

  • Yuxin Xia
  • , Bo Han*
  • , Ruixue Gu
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Dalian Maritime University

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, we propose an accelerated homotopy-perturbation-Kaczmarz iteration based on sequential subspace optimization method for solving nonlinear systems of inverse problems. The method is to iteratively project the initial value onto stripes the width of which are controlled by the search direction, the forward operator and the noise level to expedite the convergence. Under some general assumptions, we provide the convergence and regularization analysis for the proposed method. Finally, two numerical examples on inverse potential problems are presented to illustrate the effectiveness of reconstructing the solution and acceleration effect of the method.

Original languageEnglish
Article number113897
JournalJournal of Computational and Applied Mathematics
Volume404
DOIs
StatePublished - Apr 2022

Keywords

  • Homotopy-Perturbation-Kaczmarz iteration
  • Inverse potential problems
  • Nonlinear inverse problems
  • Sequential subspace optimization method

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