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arXiv 1602.04540math.AP
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径向能量散射-亚临界wave equations

Scattering for radial energy-subcritical wave equations

Casey Rodriguez

摘要:

本文研究了$d = 4,5$的径向初始数据下$\mathbb{R}^{1+d}$的聚焦和散焦能量-亚临界非线性波动方程。我们证明了如果一个解在其存在区间上在临界空间中保持有界,则该解全局存在并在$\pm \infty$处散布。证明遵循由Kenig和Merle提出的集中紧性/刚性方法,主要困难是证明具有某种紧性的非零解的不存在性.这项工作的一个主要新颖之处是使用一个简单的维里参数,以排除存在的非零解,这种紧凑性,而不是通道的能量参数已被证明是最有用的奇数维。

英文摘要:

In this paper, we study the focusing and defocusing energy--subcritical, nonlinear wave equation in $\mathbb{R}^{1+d}$ with radial initial data for $d = 4,5$. We prove that if a solution remains bounded in the critical space on its interval of existence, then the solution exists globally and scatters at $\pm \infty$. The proof follows the concentration compactness/rigidity method initiated by Kenig and Merle, and the main obstacle is to show the nonexistence of nonzero solutions with a certain compactness property. A main novelty of this work is the use of a simple virial argument to rule out the existence of nonzero solutions with this compactness property rather than channels of energy arguments that have been proven to be most useful in odd dimensions.

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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