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A modified DY conjugate gradient algorithm with sufficient descent is proposed in this paper. Furthermore under the Wolfe line search conditions, we prove that the new algorithm can support the global convergence. The initial numerical experiments show that the new algorithm is efficient.
This paper puts forwards a modified PRP conjugate gradient method, in which the new parameter formula is adopted. This method ensures automatically the non-negative of the new parameter formula. Under mild conditions, the global convergence of the proposed formula with the generalized Wolfe-Powell line search and the Wolfe-Powell line search is proved. Numerical results show that the new method performs...
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