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We consider the inhomogeneous Mixed-boundary value problem for the cubic nonlinear Schr\"{o}dinger equations on the half line. We present sufficient conditions of initial and boundary data which ensure asymptotic behavior of small solutions…

偏微分方程分析 · 数学 2019-10-31 Liliana Esquivel , Elena Kaikina , Nakao Hayashi

In this paper, we consider inverse scattering and inverse boundary value problems at sufficiently large and fixed energy for the multidimensional relativistic Newton equation with an external potential $V$, $V\in C^2$. Using known results,…

数学物理 · 物理学 2009-11-11 Alexandre Jollivet

We consider an inverse boundary value problem for a semilinear wave equation on a time-dependent Lorentzian manifold with time-like boundary. The time-dependent coefficients of the nonlinear terms can be recovered in the interior from the…

偏微分方程分析 · 数学 2021-01-27 Peter Hintz , Gunther Uhlmann , Jian Zhai

We consider the inverse problem of determining the time dependent magnetic field of the Schr\"odinger equation in a bounded open subset of $R^n$, with $n \geq 1$, from a finite number of Neumann data, when the boundary measurement is taken…

偏微分方程分析 · 数学 2012-09-27 Michel Cristofol , Eric Soccorsi

We consider inverse problems for wave, heat and Schr\"odinger-type operators and corresponding spectral problems on domains of ${\bf R}^n$ and compact manifolds. Also, we study inverse problems where coefficients of partial differential…

偏微分方程分析 · 数学 2007-05-23 Alexander Katchalov , Yaroslav Kurylev , Matti Lassas , Niculae Mandache

Initial-boundary value problems in a bounded rectangle with different types of boundary conditions for two-dimensional Zakharov-Kuznetsov equation are considered. Results on global well-posedness in the classes of weak and regular solution…

偏微分方程分析 · 数学 2017-06-06 Andrei V. Faminskii

We prove, by adapting the method of Colliander-Kenig (2002), local well-posedness of the initial-boundary value problem for the one-dimensional nonlinear Schroedinger equation on the half-line under low boundary regularity assumptions.

偏微分方程分析 · 数学 2007-05-23 Justin Holmer

Let $\Omega\subset \Bbb R^2$ be a bounded domain with $\partial\Omega\in C^\infty$ and $L$ be a positive number. For a three dimensional cylindrical domain $Q=\Omega\times (0,L)$, we obtain some uniqueness result of determining a…

数学物理 · 物理学 2015-06-12 Oleg Yu Imanuvilov , Masahiro Yamamoto

We study the existence of solutions for a class of nonlinear Schr\"odinger equations involving a magnetic field with mixed Dirichlet-Neumann boundary conditions. We use Lyusternik-Shnirelman category and the Morse theory to estimate the…

In this article we summarize what is known about the initial-boundary value problem for general relativity and discuss present problems related to it.

广义相对论与量子宇宙学 · 物理学 2011-05-25 Oscar Reula , Olivier Sarbach

In this paper we study the inverse boundary value problem of determining the potential in the Schr\"{o}dinger equation from the knowledge of the Dirichlet-to-Neumann map, which is commonly accepted as an ill-posed problem in the sense that,…

偏微分方程分析 · 数学 2012-11-29 Elena Beretta , Maarten V. de Hoop , Lingyun Qiu

In this note we consider boundary value problems in electromagnetism. We prove well-posedness results for the time-harmonic Maxwell equations in the setting of Riemannian manifolds. We also consider the eigenvalue problem the homogeneous…

偏微分方程分析 · 数学 2019-07-02 Yernat M. Assylbekov

In this paper, we establish a global Carleman estimate for an Ultrahyperbolic Schr\"odinger equation. Moreover, we prove H\"older stability for the inverse problem of determining a coefficient or a source term in the Ultrahyperbolic…

偏微分方程分析 · 数学 2017-04-25 Fikret Gölgeleyen , Özlem Kaytmaz

We prove that the number of negative eigenvalues of two-dimensional magnetic Schroedinger operators is bounded from above by the strength of the corresponding electric potential. Such estimates fail in the absence of a magnetic field. We…

谱理论 · 数学 2011-09-07 Hynek Kovarik

In this paper we consider magnetic Schroedinger operators on the two-dimensional unit disk with a radially symmetric magnetic field which explodes to infinity at the boundary. We prove a bound for the eigenvalue moments and a bound for the…

谱理论 · 数学 2020-05-20 Diana Barseghyan , Baruch Schneider

This paper investigates an inverse boundary value problem for a semilinear strongly damped wave equation with Dirichlet boundary conditions in Sobolev spaces of functions bounded in time on $\R$, including periodic and almost periodic…

偏微分方程分析 · 数学 2026-04-15 Irina Kmit , Nataliya Protsakh , Viktor Tkachenko

We consider inverse boundary value problems for the Schrodinger equations in two dimensions. Within less regular classes of potentials, we establish a conditional stability estimate of logarithmic order. Moreover we prove the uniqueness…

偏微分方程分析 · 数学 2017-10-04 E. Blåsten , O. Yu. Imanuvilov , M. Yamamoto

We consider the inverse coefficient problem of simultaneously determining the space dependent electromagnetic potential, the zero-th order coupling term and the first order coupling vector of a two-state Schr\"odinger equation in a bounded…

偏微分方程分析 · 数学 2024-10-02 Mohamed Hamrouni , Moez Khenissi , Éric Soccorsi

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

In this paper we prove uniqueness for an inverse boundary value problem for the magnetic Schr\"odinger equation in a half space, with partial data. We prove that the curl of the magnetic potential $A$, when $A\in…

偏微分方程分析 · 数学 2013-03-01 Valter Pohjola