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arXiv 1010.2190math.AP
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通过陷阱集的传播和半经典预解式估计

Propagation through trapped sets and semiclassical resolvent estimates

Kiril Datchev, András Vasy

摘要:

受捕获条件下预解式估计研究的启发,我们证明了在双特征流的紧致不变子集的邻域中的一个半经典传播定理,该子集在适当的意义下是孤立的.例子包括一个全局的陷阱集和一个孤立的周期性轨迹。这是适用于获得微局部预解估计相比,无损失的nontrapping设置。

英文摘要:

Motivated by the study of resolvent estimates in the presence of trapping, we prove a semiclassical propagation theorem in a neighborhood of a compact invariant subset of the bicharacteristic flow which is isolated in a suitable sense. Examples include a global trapped set and a single isolated periodic trajectory. This is applied to obtain microlocal resolvent estimates with no loss compared to the nontrapping setting.

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