arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2002.00194math.AP
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时间分数阶发展方程的逆移动源问题:剖面的确定

Inverse moving source problem for time-fractional evolution equations: Determination of profiles

Yikan Liu, Guanghui Hu, Masahiro Yamamoto

摘要:

本文研究了在时间上具有一阶导数$α\in(0,2]$的发展方程中确定移动源剖面函数的两个反问题。在第一个问题中,假设源沿已知的直线运动,我们适当地选择有限时间内的部分内部观测数据。将问题归结为初始值的确定,我们证明了$0<α\le1$和$1<α\le2$的一个和两个移动源轮廓的唯一确定性。在第二个问题中,假设运动源的轨道是已知的,我们考虑的全部横向柯西数据。以无限长观测时间为代价,通过构造检验函数,证明了运动源剖面的唯一确定性。

英文摘要:

This article is concerned with two inverse problems on determining moving source profile functions in evolution equations with a derivative order $α\in(0,2]$ in time. In the first problem, the sources are supposed to move along known straight lines, and we suitably choose partial interior observation data in finite time. Reducing the problems to the determination of initial values, we prove the unique determination of one and two moving source profiles for $0<α\le1$ and $1<α\le2$, respectively. In the second problem, the orbits of moving sources are assumed to be known, and we consider the full lateral Cauchy data. At the cost of infinite observation time, we prove the unique determination of one moving source profile by constructing test functions.

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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