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arXiv 1409.0699math.OC
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对称半代数集与对称多项式的非负性

Symmetric semi-algebraic sets and non-negativity of symmetric polynomials

Cordian Riener

摘要:

如何证明多项式函数的非负性是实代数的核心问题,在最优化问题中也有重要的应用。在对称多项式的设定中,Besfte提供了一种证明具有固定次数的对称多项式的非负性的有用方法。在本说明中,我们提出了更一般的结果,自然地推广了Zerofte的设置。我们研究了多项式族,这些多项式族可以用幂和多项式来表示,特别是还包括固定次数的对称多项式。因此,我们恢复的后果,阿普夫特的原始声明作为一个推论。因此,本说明也提供了一个替代和简单的证明,以证明阿夫特的原始声明。

英文摘要:

The question of how to certify the non-negativity of a polynomial function lies at the heart of Real Algebra and it also has important applications to Optimization. In the setting of symmetric polynomials Timofte provided a useful way of certifying non-negativity of symmetric polynomials that are of a fixed degree. In this note we present more general results which naturally generalize Timofte's setting. We investigate families of polynomials that allow special representations in terms of power-sum polynomials.These in particular also include the case of symmetric polynomials of fixed degree. Therefore, we recover the consequences of Timofte's original statements as a corollary. Thus, this note also provides an alternative and simple proof of Timofte's original statements.

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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