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A proximal method with logarithmic barrier for nonlinear complementarity problems

机译:具有对数势垒的非线性互补问题的一种近端方法。

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摘要

We study the proximal method with the regularized logarithmic barrier, originally stated by Attouch and Teboulle for positively constrained optimization problems, in the more general context of nonlinear complementarity problems with monotone operators. We consider two sequences generated by the method. We prove that one of them, called the ergodic sequence, is globally convergent to the solution set of the problem, assuming just monotonicity of the operator and existence of solutions; for convergence of the other one, called the proximal sequence, we demand some stronger property, like paramonotonicity of the operator or the so called "cut property" of the problem.
机译:我们研究带有正则对数壁垒的近端方法,该方法最初由Attouch和Teboulle提出,用于正约束优化问题,是在具有单调算子的非线性互补问题的更一般背景下提出的。我们考虑该方法生成的两个序列。我们证明其中之一(称为遍历序列)在总体上收敛于问题的解集,假设算子的单调性和解的存在;为了使另一个序列(称为近端序列)收敛,我们需要一些更强的属性,例如算符的超单调性或问题的所谓“割属性”。

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