一个修正的三项LS共轭梯度法

A Modified Three-term LS Conjugate Gradient m Method

基于已有的共轭梯度法的思想,提出了一个三项LS共轭梯度方法,该方法能保证搜索方向在不需要任何线搜索下具有充分下降性,并在适当条件下获得此方法对一般函数的全局收敛性.

Based on the existent ideas of the conjugate gradient method, this paper proposes a three-term LS conjugate gradient method. The presented method can make the search direction with sufficient descent property without any line search. Under certain mild conditions, zlobal convergence is obtained.