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arXiv 2004.12315math.OC
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关于多项式optimization中KKT点的类型

On types of KKT points in polynomial optimization

Feng Guo, Do Sang Kim, Liguo Jiao, Tien-Son Pham

摘要:

设$f$是以$n$为变量的实多项式函数,$S$是$\Bbb{R}^n$中的基本闭半代数集.在本文中,我们感兴趣的是识别类型的问题为此,我们研究了$f$在$S$在$x^*,$上的切簇的一些性质,并由此引入了$f$在$S$在$x^*.$上的忠实半径的定义。证明了$x^*$的类型可以由$f$在$S$与以$x^*$为中心的欧氏球的交点上的全局极值来确定.最后,我们提出了一个算法,涉及代数计算计算的忠实半径的$x^*$,并确定其类型。

英文摘要:

Let $f$ be a real polynomial function with $n$ variables and $S$ be a basic closed semialgebraic set in $\Bbb{R}^n$. In this paper, we are interested in the problem of identifying the type (local minimizer, maximizer or not extremum point) of a given isolated KKT point $x^*$ of $f$ over $S.$ To this end, we investigate some properties of the tangency variety of $f$ on $S$ at $x^*,$ by which we introduce the definition of faithful radius of $f$ over $S$ at $x^*.$ Then, we show that the type of $x^*$ can be determined by the global extrema of $f$ over the intersection of $S$ and the Euclidean ball centered at $x^*$ with a faithful radius. Finally, we propose an algorithm involving algebraic computations to compute a faithful radius of $x^*$ and determine its type.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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