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arXiv 0911.4534math.AP
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高维能量临界Wave Equations方程解的稳定性和无条件唯一性

Stability and Unconditional Uniqueness of Solutions for Energy Critical Wave Equations in High Dimensions

Aynur Bulut, Magdalena Czubak, Dong Li, Nataša Pavlović, Xiaoyi Zhang

摘要:

本文利用$d \geq 6$建立了高维${\mathbb R} \times {\mathbb R}^d$中能量临界非线性波动方程(NLW)的完备局部理论.在线性流的扰动在一定时空范数下很小的弱条件下,我们证明了解的稳定性。作为我们的稳定性分析的一个副产品,我们还证明了当地的适定性的解决方案,我们只假设小的线性演化。这些结果提供了基本的技术工具,可用于将Kenig和Merle \cite{keme06}对能量阈值以下聚焦动力学(NLW)的分析扩展到高维度。通过采用精细的仿积估计,我们还证明了$d\ge 5$的解决方案在自然能源类的无条件唯一性。这在维度$d=4$上推广了Furioli、Planchon和Terraneo \cite{FPT03}的早期结果。

英文摘要:

In this paper we establish a complete local theory for the energy-critical nonlinear wave equation (NLW) in high dimensions ${\mathbb R} \times {\mathbb R}^d$ with $d \geq 6$. We prove the stability of solutions under the weak condition that the perturbation of the linear flow is small in certain space-time norms. As a by-product of our stability analysis, we also prove local well-posedness of solutions for which we only assume the smallness of the linear evolution. These results provide essential technical tools that can be applied towards obtaining the extension to high dimensions of the analysis of Kenig and Merle \cite{keme06} of the dynamics of the focusing (NLW) below the energy threshold. By employing refined paraproduct estimates we also prove unconditional uniqueness of solutions for $d\ge 5$ in the natural energy class. This extends an earlier result by Furioli, Planchon and Terraneo \cite{FPT03} in dimension $d=4$.

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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