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arXiv 1609.02692math.OCmath.AP
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关于一维heat equation的可达集

On the reachable set for the one-dimensional heat equation

Jérémi Dardé, Sylvain Ervedoza

摘要:

本文的目的是提供一维热方程的可达集的描述,该热方程设置在空间域x $\in$(--L,L)上,Dirichlet边界控制作用在两个边界上。也就是说,在这种情况下,我们将证明,对于任何L0 \textgreater{} L,任何可以在平方{x + iy,|x| + |y| $\le$ L0}上解析扩展的函数都属于可达集。这个结果几乎是尖锐的,因为可以证明任何属于可达集的函数都可以在平方{x + iy,|x| + |y| \textless{} L}上解析扩展。我们的方法是基于Carleman型估计和柯西公式的全纯函数。

英文摘要:

The goal of this article is to provide a description of the reachable set of the one-dimensional heat equation, set on the spatial domain x $\in$ (--L, L) with Dirichlet boundary controls acting at both boundaries. Namely, in that case, we shall prove that for any L0 \textgreater{} L any function which can be extended analytically on the square {x + iy, |x| + |y| $\le$ L0} belongs to the reachable set. This result is nearly sharp as one can prove that any function which belongs to the reachable set can be extended analytically on the square {x + iy, |x| + |y| \textless{} L}. Our method is based on a Carleman type estimate and on Cauchy's formula for holomorphic 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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