中文
相关论文

相关论文: Logarithmic Stability for Coefficients Inverse Pro…

200 篇论文

Stability is a key property of both forward models and inverse problems, and depends on the norms considered in the relevant function spaces. For instance, stability estimates for hyperbolic partial differential equations are often based on…

偏微分方程分析 · 数学 2026-04-13 Rima Alaifari , Giovanni S. Alberti , Tandri Gauksson

In this work, we investigate the stability issue of the inverse problem of determining the locations and time-dependent amplitudes of point sources in a parabolic equation with a non-self adjoint elliptic operator from boundary…

偏微分方程分析 · 数学 2026-03-11 Kuang Huang , Bangti Jin , Yavar Kian , Faouzi Triki

We analyze a numerical instability that occurs in the well-known split-step Fourier method on the background of a soliton. This instability is found to be very sensitive to small changes of the parameters of both the numerical grid and the…

数值分析 · 计算机科学 2010-08-31 Taras I. Lakoba

In this article we study the inverse problem of recovering a space-dependent coefficient of the Moore-Gibson-Thompson (MGT) equation, from knowledge of the trace of the solution on some open subset of the boundary. We obtain the Lipschitz…

偏微分方程分析 · 数学 2021-11-08 Rogelio Arancibia , Rodrigo Lecaros , Alberto Mercado , Sebastián Zamorano

In this article, we study the increasing stability property for the determination of the potential in the Schr\"odinger equation from partial data. We shall assume that the inaccessible part of the boundary is flat and homogeneous boundary…

偏微分方程分析 · 数学 2017-11-15 Anupam Pal Choudhury , Horst Heck

We show that the inverse problem of Calderon for conductivities in a two-dimensional Lipschitz domain is stable in a class of conductivities that are Dini continuous. This extends previous stability results when the conductivities are known…

偏微分方程分析 · 数学 2020-03-23 Robert McOwen , Bindu K Veetel

This work considers a nonlinear inverse source problem in a coupled diffusion equation from the terminal observation. Theoretically, under some conditions on problem data, we build the uniqueness theorem for this inverse problem and show…

数值分析 · 数学 2025-04-29 Chunlong Sun , Wenlong Zhang , Zhidong Zhang

Consider the one-dimensional stochastic Helmholtz equation where the source is assumed to be driven by the white noise. This paper concerns the stability analysis of the inverse random source problem which is to reconstruct the statistical…

偏微分方程分析 · 数学 2016-07-25 Peijun Li , Ganghua Yuan

The time dependent complex Schr\"odinger equation with cubic nonlinearity is solved by constructing differential quadrature algorithm based on sinc functions. Reduction to a coupled system of real equations enables to approach the space…

数值分析 · 数学 2018-04-11 Alper Korkmaz

It is proved that, in two dimensions, the Calder\'on inverse conductivity problem in Lipschitz domains is stable in the $L^p$ sense when the conductivities are uniformly bounded in any fractional Sobolev space $W^{\alpha,p}$ $\alpha>0,…

偏微分方程分析 · 数学 2008-07-28 Albert Clop , Daniel Faraco , Alberto Ruiz

We consider the logarithmic Schr{\"o}dinger equations with damping, also called Schr{\"o}dinger-Langevin equation. On a periodic domain, this equation possesses plane wave solutions that are explicit. We prove that these solutions are…

偏微分方程分析 · 数学 2021-11-03 Quentin Chauleur , Erwan Faou

In this article, we consider inverse problems of determining a source term and a coefficient of a first-order partial differential equation and prove conditional stability estimates with minimum boundary observation data and relaxed…

偏微分方程分析 · 数学 2015-09-02 Fikret Gölgeleyen , Masahiro Yamamoto

This paper concerns the stability on the inverse source scattering problem for the one-dimensional Helmholtz equation in a two-layered medium. We show that the increasing stability can be achieved by using multi-frequency wave field at the…

偏微分方程分析 · 数学 2017-09-13 Yue Zhao , Peijun Li

We consider multi-frequency inverse source problem for the discrete Helmholtz operator on the square lattice $\mathbb{Z}^d$, $d \ge 1$. We consider this problem for the cases with and without phase information. We prove uniqueness results…

偏微分方程分析 · 数学 2024-07-09 Roman Novikov , Basant Lal Sharma

We consider an inverse problem for the nonlinear Boltzmann equation with a time-dependent kernel in dimensions $n\ge 2$. We establish a logarithm-type stability result for the collision kernel from measurements under certain additional…

偏微分方程分析 · 数学 2023-09-08 Ru-Yu Lai , Lili Yan

We consider a dispersive equation of Schr{\"o}dinger type with a non-linearity slightly larger than cubic by a logarithmic factor. This equation is supposed to be an effective model for stable two dimensional quantum droplets with LHY…

偏微分方程分析 · 数学 2023-12-04 Rémi Carles , Christof Sparber

In this paper, by using a compactness method, we study the Cauchy problem of the logarithmic Schr\"{o}dinger equation with harmonic potential. We then address the existence of ground states solutions as minimizers of the action on the…

偏微分方程分析 · 数学 2019-02-11 Alex H. Ardila , Liliana Cely , Marco Squassina

We study the stability issue in the inverse problem of determining the magnetic field and the time-dependent electric potential appearing in the Schr\"odinger equation, from boundary observations. We prove in dimension 3 or greater, that…

偏微分方程分析 · 数学 2017-09-13 Ibtissem Ben Aicha

In this paper, we prove the uniform stability of the Hochstadt-Lieberman problem, which consists in the recovery of the Sturm-Liouville potential on a half-interval from the spectrum and the known potential on the other half-interval. For…

谱理论 · 数学 2024-10-15 Natalia P. Bondarenko

The Calder\'on problem for the fractional Schr\"odinger equation was introduced in the work \cite{GSU}, which gave a global uniqueness result also in the partial data case. This article improves this result in two ways. First, we prove a…

偏微分方程分析 · 数学 2020-02-17 Angkana Rüland , Mikko Salo