A sufficient condition for global convergence of the Polak-Ribiére-Polyak method for uniformly convex functions
DU Xue-wu
Abstract：In referrence ［4］，the Polak-Ribiére-Polyak（PRP） conjugate gradient method for unconstrained optimization is considered and the conclusion is obtained that the PRP method is global convergent for uniformly convex functions under the Wolfe line search．The problem in referrence ［4］ is further investigated．A counter example is constructed to show that the result in referrence ［4］ is incorrect．A sufficient condition for global convergence of the PRP method for uniformly convex functions is given．
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 153-156 )