数学物理学报 ›› 2025, Vol. 45 ›› Issue (1): 236-255.

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求解拟单调变分不等式问题与不动点问题公共解的新投影算法

王吴静, 朱美玲, 张永乐*   

  1. 四川师范大学数学科学学院 成都 610066
  • 收稿日期:2023-12-19 修回日期:2024-06-03 出版日期:2025-02-26 发布日期:2025-01-08
  • 通讯作者: *张永乐,E-mail:yongle-zhang@163.com
  • 作者简介:王吴静, E-mail:2608239631@qq.com; 朱美玲, E-mail:meilingzhu0421@163.com
  • 基金资助:
    国家自然科学基金 (11901414)

A New Projection Algorithm for Solving Quasimonotone Variational Inequality Problems and Fixed Point Problems

Wang Wujing, Zhu Meiling, Zhang Yongle   

  1. College of Mathematical Sciences, Sichuan Normal University, Chengdu 610066
  • Received:2023-12-19 Revised:2024-06-03 Online:2025-02-26 Published:2025-01-08
  • Supported by:
    NSFC (11901414)

摘要: 该文在 Hilbert 空间中提出具有惯性项的 Tseng 型外梯度算法, 找到了拟单调变分不等式问题与半压缩映射的不动点问题的公共解. 在拟单调和一致连续的条件下, 获得了算法所生成序列的强收敛性. 最后, 通过一些数值例子说明了该算法的有效性.

关键词: 变分不等式问题与不动点问题, Tseng 型外梯度算法, 拟单调映射, 半压缩映射, 强收敛

Abstract: In this paper, we introduce a new inertial Tseng's extragradient algorithm for finding a common element of the set of solutions of a quasimonotone variational inequality problem and the set of fixed points of a demicontractive mapping in real Hilbert spaces. The strong convergence of the algorithm is proved under quasimonotone and uniformly continuous assumptions of the variational inequality mapping. Finally, some numerical examples illustrate the effectiveness of our algorithm.

Key words: variational inequality problem and fixed point problem, Tseng's extragradient algorithm, quasimonotone mapping, demicontractive mapping, strong convergence

中图分类号: 

  • O224