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arXiv 1104.3035math.AP
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奇异双曲型方程的广义傅里叶积分算子方法

Generalised Fourier integral operator methods for hyperbolic equations with singularities

Claudia Garetto, Michael Oberguggenberger

摘要:

本文讨论线性双曲型偏微分方程和伪微分方程的强奇异系数和数据,建模为成员的代数广义函数。我们采用最近发展的理论,广义傅里叶积分算子构造parametrices的解决方案和描述奇性传播在这种设置。作为必要的工具,给出了程函方程和迁移方程的广义解的构造,并得到了广义傅里叶积分算子核的微局部正则性的结果.

英文摘要:

This article addresses linear hyperbolic partial differential equations and pseudodifferential equations with strongly singular coefficients and data, modelled as members of algebras of generalised functions. We employ the recently developed theory of generalised Fourier integral operators to construct parametrices for the solutions and to describe propagation of singularities in this setting. As required tools, the construction of generalised solutions to eikonal and transport equations is given and results on the microlocal regularity of the kernels of generalised Fourier integral operators are obtained.

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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