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arXiv 2003.08424gr-qcmath-phmath.MP
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关于Penrose奇点定理假设在不等形变换下的情况

On the hypotheses of Penrose's singularity theorem under disformal transformations

Federal University of Itajubá(伊塔朱巴联邦大学);Centro de Informática, Federal University of Pernambuco(伯南布哥联邦大学计算机中心);Federal University of Paraíba(帕拉伊巴联邦大学);Federal University of Lavras(拉夫拉斯联邦大学)

Eduardo Bittencourt, Gabriel G. Carvalho, Iarley P. Lobo, Leandro Santana

AI总结:

本文研究了不等形变换对Penrose奇点定理假设的影响,推导了保证定理在不等形度量下成立的条件,并应用于静态和球对称时空。

摘要:

我们分析Penrose奇点定理(1965)的假设如何在不等形变换(以光样向量定义)作用于给定时空度量的情况下被修改。特别是,我们研究在这种情况下null能量条件和封闭陷入表面的存在如何变换,以推导出保证Penrose定理对不等形度量有效的背景度量和不等形向量的条件。然后,我们解释如何将这种技术应用于一般情况下的静态和球对称时空。

英文摘要:

We analyze how the hypotheses of Penrose's singularity theorem (1965) are modified by the action of disformal transformations (defined in terms of light-like vectors) upon a given space-time metric. In particular, we investigate the transformation of the null energy condition and the existence of closed trapped surfaces in such scenario, in order to derive conditions upon the background metric and the disformal vector that guarantee the validity of Penrose's theorem for disformal metrics. Then, we explain how to apply this technique for static and spherically symmetric space-times in general.

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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