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arXiv 0903.0048math.AP
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域II中wave equation的Rechartz估计的反例

Counter-examples to the Strichartz estimates for the wave equation in domains II

Oana Ivanovici

摘要:

我们考虑一个光滑的和有界的域的尺寸d>1,我们构造的解的波动方程的Dirichlet边界条件相矛盾的Escherichartz估计的自由空间,至少为一个子集的通常范围内的指数。这是由于微观局部现象,如焦散线在边界附近的任意小的时间内产生。

英文摘要:

We consider a smooth and bounded domain of dimension d>1 and we construct solutions to the wave equation with Dirichlet boundary conditions which contradict the Strichartz estimates of the free space, at least for a subset of the usual range of indices. This is due to micro-local phenomena such as caustics generated in arbitrarily small time near the boundary.

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