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arXiv 0807.0181gr-qc
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关于Bel-Robinson张量的代数类型

On the algebraic types of the Bel-Robinson tensor

Joan J. Ferrando, Juan A. Sáez

摘要:

Bel-Robinson张量被分析为无迹对称张量空间上的线性映射。这项研究导致一个代数分类,细化通常的Petrov-Bel分类的外尔张量。新的类对应于退化的I型时空已经在文献中从另一个角度介绍。彼得罗夫-贝尔类型和额外的固有特征在于在唯一的贝尔-罗宾逊张量,并提出了一种算法,使不同的类被区分。结果提出,解决了问题,获得外尔张量的贝尔-罗宾逊张量在正常情况下。

英文摘要:

The Bel-Robinson tensor is analyzed as a linear map on the space of the traceless symmetric tensors. This study leads to an algebraic classification that refines the usual Petrov-Bel classification of the Weyl tensor. The new classes correspond to degenerate type I space-times which have already been introduced in literature from another point of view. The Petrov-Bel types and the additional ones are intrinsically characterized in terms of the sole Bel-Robinson tensor, and an algorithm is proposed that enables the different classes to be distinguished. Results are presented that solve the problem of obtaining the Weyl tensor from the Bel-Robinson tensor in regular cases.

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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