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arXiv 1208.2108math.AP
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关于$p\in (3,5)$的能量亚临界非线性Wave Equation

On the Energy Subcritical, Non-linear Wave Equation with Radial Data for $p\in (3,5)$

Ruipeng Shen

摘要:

本文考虑三维空间中具有能量亚临界非线性的波动方程,无论是聚焦还是散焦情形。我们证明了在临界索伯列夫空间中有界的方程的任何径向解都是在时间和散射上全局定义的。证明依赖于紧凑性/刚性参数,径向衰减估计,“紧凑”的解决方案,正则性参数的增益和“能量通道”方法。

英文摘要:

In this paper, we consider the wave equation in 3-dimensional space with an energy-subcritical nonlinearity, either in the focusing or defocusing case. We show that any radial solution of the equation which is bounded in the critical Sobolev space is globally defined in time and scatters. The proof depends on the compactness/rigidity argument, decay estimates for radial, "compact" solutions, gain of regularity arguments and the "channel of energy" method.

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