吉林大学学报(理学版)

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P*(κ)线性互补问题的预估-校正内点算法

刘新泽1,2, 刘红卫1, 刘长河3   

  1. 1. 西安电子科技大学 数学系, 西安 710071; 2. 临沧高等师范专科学校 数理系, 云南 临沧 677000;3. 河南科技大学 数学与统计学院, 河南 洛阳 471003
  • 收稿日期:2012-12-18 出版日期:2013-09-26 发布日期:2013-09-17
  • 通讯作者: 刘红卫 E-mail:hwliu@mail.xidian.edu.cn

A PredictorCorrector InteriorPoint Algorithm forP*(κ)Linear Complementarity Problems

LIU Xinze1,2, LIU Hongwei1, LIU Changhe3   

  1. 1. Department of Mathematics, Xidian University, Xi’an 710071, China; 2. Department ofMathematics and Science, Lincang Teachers’ College, Lincang 677000, Yunnan Province, China; 3. School ofMathematics and Statistics, Henan University of Science and Technology, Luoyang 471003, Henan Province, China
  • Received:2012-12-18 Online:2013-09-26 Published:2013-09-17
  • Contact: LIU Hongwei E-mail:hwliu@mail.xidian.edu.cn

摘要:

通过修正大邻域跟踪算法的搜索方向, 提出一种新的求解P*(κ)线性互补问题(LCP)的不可行预估-校正内点算法, 并对算法进行了收敛性分析, 证明了该算法具有目前最好的理论复杂度O((1+κ)5/2nL). 数值结果验证了算法的有效性.

关键词: 线性互补问题, 内点算法, 预估校正算法, 多项式复杂度

Abstract:

Based on modifying the search direction of neighborhoodfollowing interiorpoint algorithm for linear programming, a new infeasible predictorcorrector interiorpoint algorithm for P*(κ)linear complementarity problem (LCP) was presented. The facts that P*(κ)LCP is nonmonotone and the corresponding search directions is nonorthogonal make the convergence analysis of the presented algorithm more complex. We have obtained the best
known iteration complexity bound of the proposed algorithm so far, i.e., O((1+κ)5/2nL), where κ is the handicap of the problem. Numerical results show that the algorithm is feasible.

Key words: linear complementarity problem, interiorpoint algorithm, predictorcorrector algorithm, polynomial complexity

中图分类号: 

  • O221.1