Abstract
The functions involving in the nonlinear complementarity problems (NCP) are often defined only in nonnegative orthant. It is necessary to develop algorithms with the following properties: 1) all iterates generated remain in the nonnegative orthant; 2) any accumulation point of the iterates is a solution of NCP. In this paper, we reformulate the NCP as an equivalent constrained minimization problem with simple bounds. The reformulation is based on a class of functions, which generalize the squared Fischer-Burmeister NCP function. It is shown that the KKT point of the constrained minimization problem is a solution of NCP if the Jacobian matrix of the function involving in NCP isP 0-matrix, A global convergent method is proposed for monotone NCP with the desirable properties (1) and (2).
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