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arXiv 2302.07414math.DGgr-qc
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正质量定理下欧几里得3-空间的稳定性

Stability of Euclidean 3-space for the positive mass theorem

Conghan Dong, Antoine Song

AI总结:

研究正质量定理中欧几里得空间的稳定性:对ADM质量趋于0的非负标量曲率渐近平坦三流形,通过移除面积趋零的子集,证明余下部分在点测度GH拓扑下收敛于R³,并给出面积近二次界、证明Bartnik猜想。

摘要:

我们证明欧几里得3-空间$\mathbb{R}^3$在正质量定理意义下是稳定的:设$(M_i,g_i)$为一列具有非负标量曲率的完备渐近平坦3-流形,若$M_i$某一端的ADM质量$m(g_i)$收敛于0,则对所有$i$,存在$M_i$的子集$Z_i$,使得$M_i\setminus Z_i$包含该端,边界$\partial Z_i$的面积收敛于0,且$(M_i\setminus Z_i,g_i)$在任取基点的点测度Gromov-Hausdorff拓扑中收敛于$\mathbb{R}^3$,这证实了G. Huisken和T. Ilmanen的猜想;此外,我们还找到了$\partial Z_i$面积关于$m(g_i)$的几乎二次上界,并将主结果应用于证明R. Bartnik的严格正性猜想。

英文摘要:

We show that the Euclidean 3-space $\mathbb{R}^3$ is stable for the Positive Mass Theorem in the following sense. Let $(M_i,g_i)$ be a sequence of complete asymptotically flat $3$-manifolds with nonnegative scalar curvature and suppose that the ADM mass $m(g_i)$ of one end of $M_i$ converges to $0$. Then for all $i$, there is a subset $Z_i$ in $M_i$ such that $M_i\setminus Z_i$ contains the given end, the area of the boundary $\partial Z_i$ converges to zero, and $(M_i\setminus Z_i,g_i)$ converges to $\mathbb{R}^3$ in the pointed measured Gromov-Hausdorff topology for any choice of basepoints. This confirms a conjecture of G. Huisken and T. Ilmanen. Additionally, we find an almost quadratic upper bound for the area of $\partial Z_i$ in terms of $m(g_i)$. As an application of the main result, we also prove R. Bartnik's strict positivity conjecture.

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