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arXiv 1302.6084math.OCmath.SP
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余正张量的充要条件

The necessary and sufficient conditions of copositive tensors

Yisheng Song, Liqun Qi

摘要:

本文证明了对称张量$\mathcal{A}$的(严格)余正性等价于$\mathcal{A}$的每个主子张量都没有(非正的)负$H^{++}$ -特征值.利用张量主子张量的$Z^{++}$ -特征值给出了该张量的充要条件。本文提出了一种利用低维张量检验对称张量的(严格)共正性的方法。同时给出了全空间$\mathbb{R}^n$上严格余正张量的等价定义.

英文摘要:

In this paper, it is proved that (strict) copositivity of a symmetric tensor $\mathcal{A}$ is equivalent to the fact that every principal sub-tensor of $\mathcal{A}$ has no a (non-positive) negative $H^{++}$-eigenvalue. The necessary and sufficient conditions are also given in terms of the $Z^{++}$-eigenvalue of the principal sub-tensor of the given tensor. This presents a method of testing (strict) copositivity of a symmetric tensor by means of the lower dimensional tensors. Also the equivalent definition of strictly copositive tensors is given on entire space $\mathbb{R}^n$.

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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