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arXiv 0910.0433math.AP
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星型障碍物外高维拟线性wave equations解的整体存在性

Global existence for high dimensional quasilinear wave equations exterior to star-shaped obstacles

Jason Metcalfe, Christopher D. Sogge

摘要:

本文研究了星型障碍物外高维拟线性波动方程解的长时间存在性。特别是,我们获得外部域类似物的四维结果的Hörmander的非线性允许依赖于解决方案,而不仅仅是它的第一和第二导数。以前的证明在外部域省略了这种依赖性,因为它没有很好地配合使用的能量方法。

英文摘要:

We study long time existence for high dimensional quasilinear wave equations exterior to star-shaped obstacles. In particular, we obtain exterior domain analogs of the four dimensional results of Hörmander where the nonlinearity is permitted to depend on the solution not just its first and second derivatives. Previous proofs in exterior domains omitted this dependence as it did not mesh well with the energy methods in use.

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