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arXiv 1602.03018gr-qcmath.AP
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广义波规下具有AVTD行为的Einstein方程的一类解

A class of solutions to the Einstein equations with AVTD behavior in generalized wave gauges

Ellery Ames, Florian Beyer, James Isenberg, Philippe G. LeFloch

摘要:

在无限维广义波规范族中建立了具有T3-空间拓扑的渐近速度项支配的光滑真空Gowdy解的存在性。这些结果表明,AVTD属性,这是已知的面坐标下的解决方案,是稳定的规范源函数的扰动。我们的证明是基于广义波规范形式主义的爱因斯坦真空方程的奇异初值问题的分析,并提供了一个框架,我们预计将是有用的更一般的时空。

英文摘要:

We establish the existence of smooth vacuum Gowdy solutions, which are asymptotically velocity term dominated (AVTD) and have T3-spatial topology, in an infinite dimensional family of generalized wave gauges. These results show that the AVTD property, which is known to hold for solutions in areal coordinates, is stable to perturbations with respect to the gauge source functions. Our proof is based on an analysis of the singular initial value problem for the Einstein vacuum equations in the generalized wave gauge formalism, and provides a framework which we anticipate to be useful for more general spacetimes.

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