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This paper focuses on stability estimates of the inverse random source problems for the polyharmonic, electromagnetic, and elastic wave equations. The source is represented as a microlocally isotropic Gaussian random field, which is defined…

偏微分方程分析 · 数学 2024-10-11 Peijun Li , Ying Liang , Xu Wang

We are concerned with the inverse problem of determining both the potential and the damping coefficient in a dissipative wave equation from boundary measurements. We establish stability estimates of logarithmic type when the measurements…

偏微分方程分析 · 数学 2015-04-01 Kaïs Ammari , Mourad Choulli

This paper is concerned with the stability of the inverse source problem for the damped biharmonic plate equation in three dimensions. The stability estimate consists of the Lipschitz type data discrepancy and the high frequency tail of the…

偏微分方程分析 · 数学 2021-03-02 Peijun Li , Xiaohua Yao , Yue Zhao

We examine the stability issue in the inverse problem of determining a scalar potential appearing in the stationary Schr{\"o}dinger equation in a bounded domain, from a partial elliptic Dirichlet-to-Neumann map. Namely, the Dirichlet data…

偏微分方程分析 · 数学 2015-01-09 Mourad Choulli , Yavar Kian , Eric Soccorsi

In this paper, we develop a new approach to investigation of the uniform stability for inverse spectral problems. We consider the non-self-adjoint Sturm-Liouville problem that consists in the recovery of the potential and the parameters of…

谱理论 · 数学 2024-09-25 Natalia P. Bondarenko

This paper is concerned with the asymptotic stability analysis of a one dimensional wave equation with Dirichlet boundary conditions subject to a nonlinear distributed damping with an L p functional framework, p $\in$ [2, $\infty$]. Some…

偏微分方程分析 · 数学 2019-07-30 Yacine Chitour , Swann Marx , Christophe Prieur

We prove spectral stability results for the $curl curl$ operator subject to electric boundary conditions on a cavity upon boundary perturbations. The cavities are assumed to be sufficiently smooth but we impose weak restrictions on the…

偏微分方程分析 · 数学 2022-02-01 Pier Domenico Lamberti , Michele Zaccaron

We consider the existence and spectral stability of periodic multi-pulse solutions in Hamiltonian systems which are translation invariant and reversible, for which the fifth-order Korteweg-de Vries equation is a prototypical example. We use…

动力系统 · 数学 2022-07-08 Ross Parker , Björn Sandstede

We establish Lipschitz stability properties for a class of inverse problems. In that class, the associated direct problem is formulated by an integral operator Am depending non-linearly on a parameter m and operating on a function u. In the…

数值分析 · 数学 2023-02-27 Darko Volkov

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 stability in the inverse problem consisting in the determination of an electric potential $q$, appearing in a Dirichlet initial-boundary value problem for the wave equation $\partial_t^2u-\Delta u+q(x)u=0$ in an unbounded…

偏微分方程分析 · 数学 2016-02-01 Yavar Kian

In this paper, we consider the Kawahara equation in a bounded interval and with a delay term in one of the boundary conditions. Using two different approaches, we prove that this system is exponentially stable under a condition on the…

We look at invariance of a.e. boundary condition spectral behavior under perturbations, $W$, of half-line, continuum or discrete Schr\"odinger operators. We extend the results of del Rio, Simon, Stolz from compactly supported $W$'s to…

谱理论 · 数学 2007-05-23 A. Kiselev , Y. Last , B. Simon

We obtain sharp asymptotic formulas for the eigenvalues and norming constants of Sturm-Liouville operators associated with the differential expression \[ -\frac{d^2}{dx^2} + x + q(x), \quad x\in [0,\infty), \] together with the boundary…

谱理论 · 数学 2025-12-11 Julio H. Toloza , Alfredo Uribe

We consider an inverse scattering problem and its near-field approximation at high frequencies. We first prove, for both problems, Lipschitz stability results for determining the low-frequency component of the potential. Then we show that,…

偏微分方程分析 · 数学 2012-05-31 Habib Ammari , Hajer Bahouri , David Dos Santos Ferreira , Isabelle Gallagher

The operator of double differentiation, perturbed by the composition of the differentiation operator and a convolution one, on a finite interval with Dirichlet boundary conditions is considered. We obtain uniform stability of recovering the…

谱理论 · 数学 2020-08-18 Sergey Buterin

We give stability estimates in the Cauchy problem for general partial differential equation of the elliptic type similar to the Helmholtz equation. We do not impose any (pseudo)convexity assumptions on the domain or the operator. These…

偏微分方程分析 · 数学 2018-07-04 Victor Isakov

We use the method of layer potentials to study the $R_2$ Regularity problem and the $D_2$ Dirichlet problem for second order elliptic equations of the form $\mathcal{L}u=0$, with lower order coefficients, in bounded Lipschitz domains. For…

偏微分方程分析 · 数学 2018-09-14 Georgios Sakellaris

This paper studies the finite-time stability and stabilization of linear discrete time-varying stochastic systems with multiplicative noise. Firstly, necessary and sufficient conditions for finite-time stability are presented via state…

最优化与控制 · 数学 2018-06-25 Tianliang Zhang , Feiqi Deng , Weihai Zhang

In this article, we study the persistence of properties of a given classical deter-ministic dierential equation under a stochastic perturbation of two distinct forms: external and internal. The rst case corresponds to add a noise term to a…

动力系统 · 数学 2019-10-02 Jacky Cresson , Yasmina Kheloufi , Khadra Nachi , Frédéric Pierret