一种修正的WYL共轭梯度法及其全局收敛性

摘要

In this paper,we proposed a modified WYL conjugate gradient method for solving un-constrained optimization problem.The method can always generate sufficient descent method independent of any line search used.Under suitable condition,the global convergence with Armijo line search is established.At last,we present numerical results to show thee efficiency of the proposed method.%文章提出了一种用于求解无约束优化问题的修正的WYL共轭梯度法,该算法在不依赖任何线性搜索的情况能够始终产生充分下降方向.在适当的条件下,采取了Armijo线性搜索的该算法具有全局收敛性,最后,我们给出相应的数值结果说明该算法是有效的.