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arXiv 1704.06015gr-qcmath.DG
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非零宇宙学常数的Bondi-Sachs度规的剥离性质

Peeling Property of Bondi-Sachs metrics for nonzero Cosmological Constant

Fangquan Xie, Xiao Zhang

摘要:

本文证明了在Sommerfeld辐射条件和三个非平凡的与$Λ$无关的函数$B$,$a$,$b$给出的边界条件下,具有非零宇宙学常数的Bondi-Sachs度规的剥离性质仍然成立.这应该表明新的边界条件是自然的。此外,我们还构造了一些不含Bondi news的非定常真空Bondi-Sachs度规,这些度规的Newmann-Penrose量下降得比通常情况快。这为非零宇宙学常数的引力波提供了一个新的特征。

英文摘要:

In this paper, we show that the peeling property still holds for Bondi-Sachs metrics with nonzero cosmological constant under the boundary condition given by Sommerfeld's radiation condition together with three nontrivial $Λ$-independent functions $B$, $a$, $b$. This should indicate the new boundary condition is natural. Moreover, we construct some nonstationary vacuum Bondi-Sachs metrics without Bondi news, which Newmann-Penrose quantities fall faster than usual. This provides a new feature of gravitational waves for nonzero cosmological constant.

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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