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arXiv 1003.2747math.AP
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低正则系数的Wave Equation的参数化构造

A Parametrix Construction for the Wave Equation with Low Regularity Coefficients Using a Frame of Gaussians

Alden Waters

摘要:

我们构造了$L^2(\mathbb{R}^n)$函数空间的复高斯框架。当沿着波动方程的双特征线传播时,该框架可以用于建立具有适当误差项的参数化。当波动方程的系数具有更大的规则性时,传播的标架函数成为高斯光束。

英文摘要:

We construct a frame of complex Gaussians for the space of $L^2(\mathbb{R}^n)$ functions. When propagated along bicharacteristics for the wave equation, the frame can be used to build a parametrix with suitable error terms. When the coefficients of the wave equation have more regularity, propagated frame functions become Gaussian beams.

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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