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arXiv 2306.03353math.DG
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Schwarzschild时空零无穷远附近的类空常平均曲率曲面

Spacelike CMC surfaces near null infinity of the Schwarzschild spacetime

Luen-Fai Tam

AI总结:

本文受Treibergs结果启发,在Schwarzschild时空中构造了具有任意给定常平均曲率H_0的类空曲面,并证明其渐近行为由给定球面函数f及由f和H_0确定的函数ϕ、ψ控制,且在未来零无穷远附近一致Lipschitz。

摘要:

受Treibergs的一个结果启发,给定标准球面S^2上的光滑函数f(y)以及任意正常数H_0,我们在Schwarzschild时空中构造了一个具有常平均曲率H_0的类空曲面,该曲面是在黑洞外部标准坐标中定义于某个r_0>0的区域r>r_0上的函数u(y, r)的图像。此外,u具有如下渐近行为:|u(y,r)-r_*-(f(y)+r^{-1}ϕ(y)+1/2 r^{-2}ψ(y)|≤Cr^{-3},其中C>0,且r_*=r+2m log(r/(2m)-1)。这里ϕ、ψ是由f和H_0确定的函数。特别地,该曲面与未来零无穷远相交,其截线由函数f给出。另外,我们证明了函数u-r_*在未来零无穷远附近是一致Lipschitz的。

英文摘要:

Motivated by a result of Treibergs, given a smooth function f(y) on the standard sphere S^2, and any positive constant H_0, we construct a spacelike surface with constant mean curvature H_0 in the Schwarzschild spacetime, which is the graph of a function u(y, r) defined on r>r_0 for some r_0>0 in the standard coordinates exterior to the blackhole. Moreover, u has the following asymptotic behavior: |u(y,r)-r_*-(f(y)+r^{-1}ϕ(y)+1/2 r^{-2}ψ(y)|\le Cr^{-3} for some C>0, where r_*=r+2m\log(r/(2m)-1). Here ϕ, ψare functions determined by f and H_0. In particular, the surface intersects the future null infinity with the cut given by the function f. In addition, we prove that the function u-r_* is uniformly Lipschitz near the future null infinity.

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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