| 一类修正的FR算法及其全局收敛性 |
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| 引用本文： | 孙敏.一类修正的FR算法及其全局收敛性[J].枣庄师专学报,2008,25(5):68-70. |
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| 作者姓名： | 孙敏 |
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| 作者单位： | 枣庄学院数学与信息科学系,山东枣庄277160 |
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| 摘 要： | 基于喻（2006）提出的修正PRP算法,给出一类修正的FR算法.该算法的优点是：（1）在无需线性搜索的条件下,迭代方向就是充分下降方向;（2）在比喻（2006）的算法更弱的条件下,分析了算法的全局收敛性.
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| 关 键 词： | 共轭梯度法 FR法 充分下降 全局收敛性 |
A Modified FR Method and its Global Convergence |
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| SUN Min.A Modified FR Method and its Global Convergence[J].Journal of Zaozhuang Teachers' College,2008,25(5):68-70. |
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| Authors: | SUN Min |
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| Institution: | SUN Min (Department of Mathematics and Information Science ,Zaozhuang University, Shandong 277160, China) |
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| Abstract: | Based on the modified PRP method proposed by Yu（2006）, a modified FR method is proposed in this paper. The method has the following attractive properties ： （ 1 ） the iterative direction is always a sufficienfly descent direction without utilizing the line search; （2） Under more mild conditions than Yu（2006）, the method has global convergence. |
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| Keywords: | conjugate gradient method FR method sufficiently descent global convergence |
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