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信赖域方法求解非光滑不等式组
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作者 夏红卫 《常州工学院学报》 2009年第3期52-56,共5页
通过构造光滑函数将非光滑不等式组转化为一个非线性方程组,进而利用信赖域方法求解该方程组。算法使用了非单调结构,提高了计算的效率,扩大了算法的适用范围。在通常的假设下,证明了算法的全局收敛性,并给出了数值试验。
关键词 非光滑不等式组 光滑函数 信赖域方法
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A smoothing Newton method for mathematical programs constrained by parameterized quasi-variational inequalities 被引量:1
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作者 WU Jia ZHANG LiWei 《Science China Mathematics》 SCIE 2011年第6期1269-1286,共18页
We consider a class of mathematical programs governed by parameterized quasi-variational inequalities(QVI).The necessary optimality conditions for the optimization problem with QVI constraints are reformulated as a sy... We consider a class of mathematical programs governed by parameterized quasi-variational inequalities(QVI).The necessary optimality conditions for the optimization problem with QVI constraints are reformulated as a system of nonsmooth equations under the linear independence constraint qualification and the strict slackness condition.A set of second order sufficient conditions for the mathematical program with parameterized QVI constraints are proposed,which are demonstrated to be sufficient for the second order growth condition.The strongly BD-regularity for the nonsmooth system of equations at a solution point is demonstrated under the second order sufficient conditions.The smoothing Newton method in Qi-Sun-Zhou [2000] is employed to solve this nonsmooth system and the quadratic convergence is guaranteed by the strongly BD-regularity.Numerical experiments are reported to show that the smoothing Newton method is very effective for solving this class of optimization problems. 展开更多
关键词 smoothing Newton method MPEC QVI optimality conditions
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