Journal of the Operations Research Society of China ›› 2019, Vol. 7 ›› Issue (2): 195-204.doi: 10.1007/s40305-019-00249-w

所属专题: Continuous Optimization

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  • 收稿日期:2018-08-23 修回日期:2019-04-25 出版日期:2019-06-30 发布日期:2019-06-30
  • 通讯作者: Yin Zhang E-mail:yinzhang@cuhk.edu.cn,yzhang@rice.edu

Convergence of a Class of Stationary Iterative Methods for Saddle Point Problems

Yin Zhang1,2   

  1. 1 Institute for Data and Decision Analytics, The Chinese University of Hong Kong, Shenzhen 518172, China;
    2 Department of Computational and Applied Mathematics, Rice University, Houston 77005, United States of America
  • Received:2018-08-23 Revised:2019-04-25 Online:2019-06-30 Published:2019-06-30
  • Contact: Yin Zhang E-mail:yinzhang@cuhk.edu.cn,yzhang@rice.edu
  • Supported by:
    This paper is a polished version of the Rice University technical report CAAMTR10-24, which was a work supported in part by the National Natural Science Foundation (No. DMS-0811188) and Office of Navy Research (No. N00014-08-1-1101). It was later also supported in part by a research Grant administrated by the Shenzhen Research Institute of Big Data. The wording in this abstract, as in some other places, has been modified from the original version. All cited publications appear prior to the year 2011.

Abstract: A unified convergence theory is derived for a class of stationary iterative methods for solving linear equality constrained quadratic programs or saddle point problems. This class is constructed from essentially all possible splittings of the submatrix residing in the (1,1)-block of the augmented saddle point matrix that would produce non-expansive iterations. The classic augmented Lagrangian method and alternating direction method of multipliers are two special members of this class.

Key words: Saddle point problem, Quadratic program, Matrix splitting, Stationary iterations, Spectral radius, Q-linear convergence

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