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arXiv 2408.08326math.APmath-phmath.MP
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二维Helmholtz方程的全息唯一性定理

A holographic uniqueness theorem for the two-dimensional Helmholtz equation

Arjun Nair, Roman Novikov

AI总结:

该研究针对二维外区域的Helmholtz方程,证明外区域的辐射解可由不平行于平面波传播方向的直线区间上总解的强度唯一确定,解决了二维全息学的经典数学问题,也丰富了二维辐射解的Karp展开理论。

摘要:

我们研究了$\boldsymbol{\text{ℝ}}^2$中二维外区域上Helmholtz方程的平面波、辐射解以及这两类解的和(总解)。我们在该区域内选取一条直线,且平面波的传播方向不与该直线平行。我们证明,外区域中的辐射解可由该直线某一区间上总解的强度唯一确定。特别地,这一结果解决了二维情形下一个长期存在的全息学数学问题。我们的证明也对二维辐射解的Karp展开理论有所贡献。

英文摘要:

We consider a plane wave, a radiation solution, and the sum of these solutions (total solution) for the Helmholtz equation in an exterior region in $\mathbb R^2$. We consider a straight line in this region, such that the direction of propagation of the plane wave is not parallel to this line. We show that the radiation solution in the exterior region is uniquely determined by the intensity of the total solution on an interval of this line. In particular, this result solves one of the old mathematical questions of holography in its two-dimensional setting. Our proofs also contribute to the theory of the Karp expansion of radiation solutions in two dimensions.

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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