• 论文 •

### 求解大规模极大极小问题的光滑化三项共轭梯度算法

1. 1. 长沙师范学院数学科学学院, 长沙 410100;
2. 中南大学数学与统计学院, 长沙 410083
• 收稿日期:2020-07-24 出版日期:2022-07-14 发布日期:2022-08-03
• 通讯作者: 万中,Email:wanmath@csu.edu.cn.
• 基金资助:
国家社会科学基金项目(21BGL122)和国家自然科学基金项目(71671190)资助.

Guo Jie, Wan Zhong. A SMOOTHING THREE-TERM CONJUGATE GRADIENT METHOD FOR SOLVING FINITE MINIMAX PROBLEMS[J]. Mathematica Numerica Sinica, 2022, 44(3): 324-338.

### A SMOOTHING THREE-TERM CONJUGATE GRADIENT METHOD FOR SOLVING FINITE MINIMAX PROBLEMS

Guo Jie1,2, Wan Zhong2

1. 1. School of Mathematical Sciences, ChangSha Normal University, ChangSha 410100, China;
2. School of Mathematics and Statistics, Central South University, ChangSha, 410083, China
• Received:2020-07-24 Online:2022-07-14 Published:2022-08-03

In this paper, by the method of exponential penalty, we modify the recently proposed three-term conjugate gradient method for solving optimization problems such that it is used to solve more complicated large-scale minimax problems. It is proved that the search directions generated by our method are sufficiently descent for the smoothing subproblems, being independent of the used line search rules. With such a property, a new algorithm is developed to solve the large-scale min-max problems, and its global convergence is established under mild assumptions. By numerical experiments, it is shown that this algorithm outperforms the other similar ones available in the literature.

MR(2010)主题分类:

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