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arXiv 1806.01063math.OC
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余正张量锥的逼近族

Approximation Hierarchies for Copositive Tensor Cone

Muhammad Faisal Iqbal, Faizan Ahmed, Muhammad Aqeel, Salman Ahmad

摘要:

本文讨论了余正张量,它是余正矩阵的自然推广。本文分析了余正张量的一些基本性质,以及余正张量类与半正定张量类重合的条件。此外,我们描述了几个层次,近似的锥的共正张量。层次结构主要是基于不同的制度,如单纯分割,合理的网格和多项式条件。该层次结构从内部(内部近似)或外部(外部近似)近似共正锥。我们还将讨论不同层次之间的关系。

英文摘要:

In this paper we discuss copositive tensors, which are a natural generalization of the copositive matrices. We present an analysis of some basic properties of copositive tensors; as well as the conditions under which class of copositive tensors and the class of positive semidefinite tensors coincides. Moreover, we have describe several hierarchies that approximates the cone of copositive tensors. The hierarchies are predominantly based on different regimes such as; simplicial partition, rational griding and polynomial conditions. The hierarchies approximates the copositive cone either from inside (inner approximation) or from outside (outer approximation). We will also discuss relationship among different hierarchies.

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