数学物理学报 ›› 2015, Vol. 35 ›› Issue (5): 927-935.

• 论文 • 上一篇    下一篇

一种新的广义次梯度及其性质

黄正刚   

  1. 重庆理工大学数学与统计学院 重庆 400054
  • 收稿日期:2014-04-20 修回日期:2015-03-04 出版日期:2015-10-25 发布日期:2015-10-25
  • 作者简介:黄正刚,hzg@cqut.edu.cn

A New Notion of Generalized Subgradients and Its Properties

Huang Zhenggang   

  1. College of Mathematics and Statistics, Chongqing University of Technology, Chongqing 400054
  • Received:2014-04-20 Revised:2015-03-04 Online:2015-10-25 Published:2015-10-25

摘要:

该文提出了一种新的广义次梯度,讨论了与Tangent锥相关的一些基本性质,且在部分性质基础上得出了含不等式与任意集约束下非凸非可微标量最优化问题的k阶严格局部极小点存在的必要与充分条件以及无约束非凸非可微标量最优化问题局部极小点存在的必要条件.

关键词: k-下(上)次梯度, Tangent锥, k阶严格局部极小点, 局部极小点, 最优性条件

Abstract:

This paper proposes a new notion of generalized subgradients and discusses some properties of it in terms of Tangent cone. Using some of those properties, necessary and sufficient optimality conditions for a nonconvex and nondifferentiable scalar optimization problem with inequalities constraints and an arbitrary set constraint are derived, also a necessary condition for a nonconvex and nondifferentiable unconstrained scalar optimization problem is derived.

Key words: k-Lower(upper)subgradient, Tangent cone, Strict local minimizer of order k, Local minimizer, Optimality conditions

中图分类号: 

  • O224