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从共形横截各向异性流形上的部分数据恢复对流扩散方程的时变系数

Recovery of time-dependent coefficients for the convection-diffusion equation on conformally transversally anisotropic manifolds from partial data

Boya Liu, Anamika Purohit

arXiv 2608.04970首次发表:更新:

AI 中文总结

该研究针对共形横截各向异性流形上的对流扩散方程反问题,利用部分输入-输出算子,在1-形式与函数的衰减测地射线变换单射的条件下,唯一确定时变对流项和密度系数。

AI 中文摘要

我们研究在维数至少为3的某类紧致黎曼流形上,从部分数据恢复对流扩散方程的时变对流项和密度系数的反问题。我们证明,部分输入-输出算子的知识可唯一确定这两个系数,且其确定程度在自然规范变换下等价。我们的几何背景是共形横截各向异性流形,即带边界的紧致黎曼流形,可共形嵌入到欧氏直线与横截流形的乘积中。此外,我们假设横截流形上的1-形式和函数的衰减测地射线变换均为单射。

英文摘要

We study an inverse problem of recovering a time-dependent convection term and density coefficient of the convection-diffusion equation from partial data on a certain type of compact Riemannian manifold of dimension at least three. We prove that the knowledge of a partial input-output operator determines both coefficients uniquely up to a natural gauge. Our geometric setting is conformally transversally anisotropic manifolds, that is, compact Riemannian manifolds with boundary that are conformally embedded into a product of the Euclidean line and a transversal manifold. Additionally, we assume that the attenuated geodesic ray transforms of one-forms and functions are both injective on the transversal manifold.

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