The Prox-Tikhonov-Like Forward-Backward method and applications

  • D. R. Sahu
  • , Q. H. Ansari
  • , J. C. Yao*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

It is known, by Rockafellar [SIAM J. Control Optim., 14 (1976), 877–898], that the proximal point algorithm (PPA) converges weakly to a zero of a maximal monotone operator in a Hilbert space, but it fails to converge strongly. Lehdili and Moudafi [Optimization, 37(1996), 239–252] introduced the new prox- Tikhonov regularization method for PPA to generate a strongly convergent sequence and established a convergence property for it by using the technique of variational distance in the same space setting. In this paper, the prox-Tikhonov regularization method for the proximal point algorithm of finding a zero for an accretive operator in the framework of Banach space is proposed. Conditions which guarantee the strong convergence of this algorithm to a particular element of the solution set is provided. An inexact variant of this method with non-summable error sequence is also discussed.

Original languageEnglish
Pages (from-to)481-503
Number of pages23
JournalTaiwanese Journal of Mathematics
Volume19
Issue number2
DOIs
StatePublished - 22 Mar 2015

Bibliographical note

Publisher Copyright:
© 2015, Mathematical Society of the Rep. of China. All rights reserved.

Keywords

  • Accretive operator
  • Maximal monotone operator
  • Metric projection mapping
  • Proximal point algorithm
  • Regularization method
  • Resolvent identity
  • Strong convergence
  • Uniformly Gâteaux differentiable norm

ASJC Scopus subject areas

  • General Mathematics

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