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一类混合的FR-PC共轭梯度法及其全局收敛性 被引量:4

A Hybrid FR and PC Conjugate Gradient Method with its Global Convergence
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摘要 提出了一种混合的FR-PC共轭梯度法,该法每步迭代都可自动产生一个充分下降方向.分别在Wolfe搜索和固定步长公式下证明了算法的全局收敛性,数值实验说明算法是有效的. A hybrid FR and PC conjugate gradient method for unconstrained optimization was proposed,which generates automatically a sufficient descent direction.Global convergence of new method in which the step-length was computed by Wolfe line search and a fixed formula was proved.Preliminary numerical experiments show that the new method is efficient.
出处 《河南师范大学学报(自然科学版)》 CAS CSCD 北大核心 2010年第2期42-44,52,共4页 Journal of Henan Normal University(Natural Science Edition)
基金 国家自然科学基金(60962006) 宁夏高等学校科学研究项目(2009JY006) 湖南省教育厅资助项目(08C668)
关键词 无约束优化 共轭梯度法 全局收敛性 unconstrained optimization conjugate gradient method global convergence
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参考文献7

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