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arXiv 2209.01735math.APmath.CVmath.DS
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一阶解析拟线性微分方程解的极大域

Maximal domains of solutions for analytic quasilinear differential equations of first order

Chong-Kyu Han, Taejung Kim

摘要:

本文研究一阶拟线性偏微分方程的Cauchy问题的局部实分析解的实解析延拓。利用特征向量场的首次积分和隐函数定理,确定了局部解作为单值函数的解析扩张的最大值域。我们给出了一些例子,包括允许整体首次积分的标量守恒律,使我们的方法是适用的。

英文摘要:

We study the real-analytic continuation of local real-analytic solutions to the Cauchy problems of quasi-linear partial differential equations of first order for a scalar function. By making use of the first integrals of the characteristic vector field and the implicit function theorem we determine the maximal domain of the analytic extension of a local solution as a single-valued function. We present some examples including the scalar conservation laws that admit global first integrals so that our method is applicable.

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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