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相关论文: Inverse boundary problems for biharmonic operators…

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We study an inverse problem of determining a time-dependent potential appearing in the wave equation in conformally transversally anisotropic manifolds of dimension three or higher. These are compact Riemannian manifolds with boundary that…

偏微分方程分析 · 数学 2024-10-22 Boya Liu , Teemu Saksala , Lili Yan

In this paper we study inverse boundary value problems with partial data for the bi-harmonic operator with first order perturbation. We consider two types of subsets of $\mathbb{R}^{n}(n\geq 3)$, one is an infinite slab, the other is a…

偏微分方程分析 · 数学 2013-11-12 Yang Yang

We consider an operator $\Delta^2 + A(x)\cdot D+q(x)$ with the Navier boundary conditions on a bounded domain in $R^n$, $n\ge 3$. We show that a first order perturbation $A(x)\cdot D+q$ can be determined uniquely by measuring the…

偏微分方程分析 · 数学 2011-03-02 Katsiaryna Krupchyk , Matti Lassas , Gunther Uhlmann

We consider the anisotropic Calderon problem of recovering a conductivity matrix or a Riemannian metric from electrical boundary measurements in three and higher dimensions. In the earlier work \cite{DKSaU}, it was shown that a metric in a…

偏微分方程分析 · 数学 2014-05-13 David Dos Santos Ferreira , Yaroslav Kurylev , Matti Lassas , Mikko Salo

We study inverse boundary problems for semilinear Schr\"odinger equations on smooth compact Riemannian manifolds of dimensions $\ge 2$ with smooth boundary, at a large fixed frequency. We show that certain classes of cubic nonlinearities…

偏微分方程分析 · 数学 2024-02-21 Katya Krupchyk , Shiqi Ma , Suman Kumar Sahoo , Mikko Salo , Simon St-Amant

We consider inverse boundary value problems for general real principal type differential operators. The first results state that the Cauchy data set uniquely determines the scattering relation of the operator and bicharacteristic ray…

偏微分方程分析 · 数学 2020-02-24 Lauri Oksanen , Mikko Salo , Plamen Stefanov , Gunther Uhlmann

We study an inverse problem of determining a time-dependent damping coefficient and potential appearing in the wave equation in a compact Riemannian manifold of dimension three or higher. More specifically, we are concerned with the case of…

偏微分方程分析 · 数学 2024-07-26 Boya Liu , Teemu Saksala , Lili Yan

We consider the inverse problem of determining the metric-measure structure of collapsing manifolds from local measurements of spectral data. In the part I of the paper, we proved the uniqueness of the inverse problem and a continuity…

偏微分方程分析 · 数学 2024-04-26 Matti Lassas , Jinpeng Lu , Takao Yamaguchi

We study the unique recovery of time-independent lower order terms appearing in the symmetric first order perturbation of the Riemannian wave equation by sending and measuring waves in disjoint open sets of \textit{a priori} known closed…

偏微分方程分析 · 数学 2025-10-30 Matti Lassas , Boya Liu , Teemu Saksala , Andrew Shedlock , Ziyao Zhao

We consider the inverse problem of the reconstruction of a Schr\"odinger operator on a unknown Riemannian manifold or a domain of Euclidean space. The data used is a part of the boundary $\Gamma$ and the eigenvalues corresponding to a set…

偏微分方程分析 · 数学 2009-11-10 Yaroslav Kurylev , Matti Lassas , Ricardo Weder

This paper investigates the anisotropic Calder\'{o}n problem for a non-local elliptic operator of order 2, on closed Riemannian manifolds. We demonstrate that using the Cauchy data set, we can recover the geometry of a closed Riemannian…

偏微分方程分析 · 数学 2025-05-30 Susovan Pramanik

We consider inverse boundary value problems for polyharmonic operators and in particular, the problem of recovering the coefficients of terms up to order one. The main interest of our result is that it further relaxes the regularity…

偏微分方程分析 · 数学 2025-03-27 R. M. Brown , L. D. Gauthier

We consider the inverse problem of recovering a potential from the Dirichlet to Neumann map at a large fixed frequency on certain Riemannian manifolds. We extend the earlier result of [G. Uhlmann and Y. Wang, arXiv:2104.03477] to the case…

偏微分方程分析 · 数学 2023-09-01 Shiqi Ma , Suman Kumar Sahoo , Mikko Salo

In this paper we consider two inverse problems on a closed connected Riemannian manifold $(M,g)$. The first one is a direct analog of the Gel'fand inverse boundary spectral problem. To formulate it, assume that $M$ is divided by a…

偏微分方程分析 · 数学 2007-09-17 Katsiaryna Krupchyk , Yaroslav Kurylev , Matti Lassas

We consider abstract inverse problems between infinite-dimensional Banach spaces. These inverse problems are typically nonlinear and ill-posed, making the inversion with limited and noisy measurements a delicate process. In this work, we…

泛函分析 · 数学 2022-12-20 Giovanni S. Alberti , Ángel Arroyo , Matteo Santacesaria

We consider the following perturbed polyharmonic operator $\Lc(x,D)$ of order $2m$ defined in a bounded domain $\Omega \subset \mathbb{R}^n, n\geq 3$ with smooth boundary, as \begin{equation*} \Lc(x,D) \equiv (-\Delta)^m +…

偏微分方程分析 · 数学 2018-05-25 Tuhin Ghosh , Sombuddha Bhattacharyya

In this article we study the linearized anisotropic Calderon problem. In a compact manifold with boundary, this problem amounts to showing that products of harmonic functions form a complete set. Assuming that the manifold is transversally…

偏微分方程分析 · 数学 2018-10-29 David Dos Santos Ferreira , Yaroslav Kurylev , Matti Lassas , Tony Liimatainen , Mikko Salo

This article surveys recent results aiming at obtaining refined mapping estimates for the X-ray transform on a Riemannian manifold with boundary, which leverage the condition that the boundary be strictly geodesically convex. These…

偏微分方程分析 · 数学 2023-09-04 François Monard

We study a generalized boundary rigidity problem, which investigates whether the areas of embedded minimal surfaces can uniquely determine a Riemannian manifold with boundary. We prove that for a conformal perturbation of an analytic metric…

偏微分方程分析 · 数学 2025-10-28 Leonard Busch , Tony Liimatainen , Mikko Salo , Leo Tzou

We consider the inverse problem of recovering the magnetic and potential term of a magnetic Schr\"{o}dinger operator on certain compact Riemannian manifolds with boundary from partial Dirichlet and Neumann data on suitable subsets of the…

偏微分方程分析 · 数学 2018-10-10 Sombuddha Bhattacharyya