Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4640227 | Journal of Computational and Applied Mathematics | 2011 | 10 Pages |
Abstract
Recently, Hager and Zhang (2005) [11] proposed a new conjugate gradient method which generates sufficient descent direction gkTdk≤−7/8‖gk‖2, this property is independent of the line search used. In this paper, we take a modification of this method, such that the sufficient descent direction satisfies gkTdk=−‖gk‖2, this property is also independent of the line search used. Under appropriate conditions, we prove that the proposed method is globally convergent. Moreover, we give a sufficient condition for the global convergence of the proposed general method. The numerical results show that the proposed method is efficient.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Zhifeng Dai, Fenghua Wen,