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arXiv 2207.03591gr-qcmath.DG
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广义相对论中的精确平行波

Exact Parallel Waves in General Relativity

Cian Roche, Amir Babak Aazami, Carla Cederbaum

摘要:

本文回顾了波动时空的基本定义和主要研究结果,波动时空是指以光速运动的无质量辐射的度规模型的时空,特别关注具有平行射线的几何。特别是,我们的动机和连接他们的各种定义,概述他们的坐标描述,并提出一些经典的结果,在他们的研究中的语言更方便现代读者,包括存在的“零坐标”和建设彭罗斯限制。我们还提出了一个彻底的总结最近的工作在PP波的因果关系,并描述在解决该领域的一个悬而未决的问题-Ehlers-Kundt猜想的进展。

英文摘要:

We conduct a review of the basic definitions and the principal results in the study of wavelike spacetimes, that is spacetimes whose metric models massless radiation moving at the speed of light, focusing in particular on those geometries with parallel rays. In particular, we motivate and connect their various definitions, outline their coordinate descriptions and present some classical results in their study in a language more accessible to modern readers, including the existence of "null coordinates" and the construction of Penrose limits. We also present a thorough summary of recent work on causality in pp-waves, and describe progress in addressing an open question in the field - the Ehlers-Kundt conjecture.

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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