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arXiv 1405.1202gr-qc
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广义相对论中动量约束的解耦

Decoupling the momentum constraints in general relativity

Jacek Tafel

摘要:

本文给出了广义相对论中真空初始条件的2+1分解。当平均曲率为常数时,其中一个动量约束在准各向同性坐标系中是不稳定的,可以用求积法求解。其余的动量约束以切向柯西-黎曼方程的形式表示。在额外的假设下,它的解可以写成已知函数的积分。我们展示了如何获得初始数据的边缘外捕获表面。Kerr数据的推广。

英文摘要:

We present a 2+1 decomposition of the vacuum initial conditions in general relativity. For a constant mean curvature one of the momentum constraints decouples in quasi isotropic coordinates and it can be solved by quadrature. The remaining momentum constraints are written in the form of the tangential Cauchy-Riemann equation. Under additional assumptions its solutions can be written in terms of integrals of known functions. We show how to obtain initial data with a marginally outer trapped surface. A generalization of the Kerr data is presented.

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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