华中师范大学学报(自然科学版)2017,Vol.51Issue(6):731-735,5.DOI:10.19603/j.cnki.1000-1190.2017.06.002
一种求解大规模方程组的修正Dai-Yuan共轭梯度法
A modified Dai-Yuan conjugate gradient algorithm for large-scale nonlinear equations
摘要
Abstract
This paper gives a modified Dai-Yuan conjugate gradient algorithm for large-scale nonlinear equations.The presented search direction not only possesses the sufficient descent property but also belongs to a trust region.The new algorithm has the global convergence under appropriate conditions.Numerical results show that this proposed algorithm is more effective than that of the normal method for large scale nonlinear equations.关键词
非线性方程组/共轭梯度法/大规模/信赖域/全局收敛Key words
nonlinear equation/conjugate gradient methods/large-scale/trust region/global convergence分类
数理科学引用本文复制引用
黎勇,邓娌莉..一种求解大规模方程组的修正Dai-Yuan共轭梯度法[J].华中师范大学学报(自然科学版),2017,51(6):731-735,5.基金项目
国家自然科学基金项目(11661001,11661009) (11661001,11661009)
广西省自然科学基金项目(2014GXNSFAA118030) (2014GXNSFAA118030)
广西省教育厅科研项目(YB2014389). (YB2014389)