Algorithm for fixed point approximation of Fejer operators

Authors

  • V. O. Chernorai Taras Shevchenko National University of Kyiv image/svg+xml
  • V. V. Semenov https://orcid.org/0000-0002-3280-8245 ,
    Taras Shevchenko National University of Kyiv image/svg+xml

DOI:

https://doi.org/10.17721/2706-9699.2026.1.08

Keywords:

fixed point, variational inequality, optimization, Fejer operator, Halpern algorithm, strong convergence

Abstract

The theory of fixed points of operators and the corresponding algorithms are a powerful tool for studying nonlinear phenomena. The article considers the problems of finding fixed points of Fejer (quasi-nonexpansive) operators acting in Hilbert space, and variational inequalities on the set of fixed points. Strong convergence of the Halpern algorithm with averaging (the Halpern Suzuki algorithm) for finding fixed points of Fejer (quasi-nonexpansive) operators is proved.

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Published

2026-04-24

How to Cite

Chernorai, V. O., & Semenov, V. V. (2026). Algorithm for fixed point approximation of Fejer operators. Journal of Numerical and Applied Mathematics, 1, 109-117. https://doi.org/10.17721/2706-9699.2026.1.08