J4 ›› 2011, Vol. 49 ›› Issue (05): 839-843.

• 数学 • 上一篇    下一篇

同伦内点方法求解一类无界非凸集合上的不动点问题

苏孟龙1,2, 赵立芹3, 吕显瑞2   

  1. 1. 洛阳师范学院 数学学院, 河南 洛阳 471000|2. 吉林大学 数学学院, 长春 130012;3. 吉林大学 学报编辑部, 长春 130012
  • 收稿日期:2011-03-18 出版日期:2011-09-26 发布日期:2011-09-27
  • 通讯作者: 苏孟龙 E-mail:mlsulynu@163.com

Homotopy Interior Point Method for Solving a Class ofFixed Point Problems in Unbounded Nonconvex Sets

SU Menglong1,2, ZHAO Liqin3, L Xianrui2   

  1. 1. College of Mathematics, Luoyang Normal University, Luoyang 471000, Henan Province, China;2. College of Mathematics, Jilin University, Changchun 130012, China;3. Editorial Department of Journal of Jilin University, Changchun 130012, China
  • Received:2011-03-18 Online:2011-09-26 Published:2011-09-27
  • Contact: SU Menglong E-mail:mlsulynu@163.com

摘要:

给出了求解一类无界非凸集上不动点问题的同伦内点方法. 利用自映射Φ(x), 并结合约束函数的梯度, 先构造一组无界性条件, 在此基础上, 给出了不动点存在性的构造性证明, 得到了同伦内点方法的全局收敛性.

关键词: 同伦内点方法, 无界非凸集, 全局收敛性方法

Abstract:

A homotopy interior point method was proposed to solve fixed point problems in unbounded nonconvex sets. Combining the selfmapping Φ(x) with the gradients of constrained functions, we constructed a set of unbounded conditions. Based on those unbounded conditions, we gave the constructive proof of the existence of fixed points,  obtaining the global convergence results of the homotopy interior point method.

Key words:  homotopy interior point method, unbounded nonconvex sets, globally convergent method

中图分类号: 

  • O221.2