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arXiv 2602.03451math.DGgr-qc
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非旋流形上低正则性黎曼正质量定理

A low-regularity Riemannian positive mass theorem for non-spin manifolds with distributional curvature

Fachbereich Mathematik, Universität Hamburg(汉堡大学数学系)

Eduardo Hafemann

AI总结:

本文在非旋流形上建立了低正则性黎曼正质量定理,通过改进的收敛性和比较理论,去除了旋条件的假设。

摘要:

本文建立了非旋流形上低正则性黎曼正质量定理,这些流形的度量仅是$C^0 \cap W_{\mathrm{loc}}^{1,n}$且在紧集外光滑。主要定理指出,具有非负分布标量曲率的渐近平坦流形具有非负ADM质量。证明使用了度量的光滑近似以及Friedrichs引理的Sobolev版本,从而改进了微分与卷积算子之间交换算子的收敛性。通过比较$\sf{RCD}$-空间的理论和Jiang-Sheng-Zhang关于具有非负分布曲率的紧流形的刚性定理,获得了$C^0 \cap W_{\mathrm{loc}}^{1,p}$($p>n$)度量的刚性。论证依赖于基本技术或标准论证的推广。本质上,呈现了Lee-LeFloch主定理的一个版本,在假设度量在紧集外光滑的情况下去除了旋条件。

英文摘要:

This article establishes a low-regularity Riemannian positive mass theorem for non-spin manifolds whose metrics are only $C^0 \cap W_{\mathrm{loc}}^{1,n}$ and smooth outside a compact set. The main theorem asserts that asymptotically flat manifolds with nonnegative distributional scalar curvature have nonnegative ADM mass. The proof uses smooth approximations of the metric together with a Sobolev version of Friedrichs' Lemma, which yields improved convergence for commutators between differentiation and convolution operators. Rigidity in the metric-space sense is obtained via the volume comparison theory of $\sf{RCD}$-spaces after establishing that zero ADM mass implies Ricci flatness, which fundamentally relies on these improved estimates. In essence, a version of the main theorem of Lee-LeFloch is presented in which the spin condition is removed under the assumption that the metric is smooth outside a compact set.

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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