奶酪片宇宙中的速度支配奇点
Velocity dominated singularities in the cheese slice universe
摘要:
我们研究时空的性质,从匹配在一起的精确解使用Darmois匹配条件。特别是,我们专注于渐近速度项占主导地位的财产(AVTD)。我们提出了一个标准,可用于测试,如果从匹配构造的时空可以被认为是AVTD。使用奶酪片宇宙作为一个例子,我们表明,从这样一个匹配构造的时空可以继承AVTD属性从原来的时空。此外,由该特定匹配产生的奇点是AVTD奇点。
英文摘要:
We investigate the properties of spacetimes resulting from matching together exact solutions using the Darmois matching conditions. In particular we focus on the asymptotically velocity term dominated property (AVTD). We propose a criterion that can be used to test if a spacetime constructed from a matching can be considered AVTD. Using the Cheese Slice universe as an example, we show that a spacetime constructed from a such a matching can inherit the AVTD property from the original spacetimes. Furthermore the singularity resulting from this particular matching is an AVTD singularity.
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