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We formulate and study an elliptic transmission-like problem combining local and nonlocal elements. Let $\mathbb{R}^{n}$ be separated into two components by a smooth hypersurface $\Gamma$. On one side of $\Gamma$, a function satisfies a…

偏微分方程分析 · 数学 2015-06-19 Dennis Kriventsov

In this article we discuss the modelling of elastic and electromagnetic wave propagation through one- and two-dimensional structured piezoelectric solids. Dispersion and the effect of piezoelectricity on the group velocity and positions of…

Consider the scattering of a time-harmonic elastic plane wave by a bi-periodic rigid surface. The displacement of elastic wave motion is modeled by the three-dimensional Navier equation in an open domain above the surface. Based on the…

数值分析 · 数学 2020-07-28 Gang Bao , Xue Jiang , Peijun Li , Xiaokai Yuan

In this paper, we provide an analytical study of the transmission eigenvalue problem in the context of biharmonic scattering with a penetrable obstacle. We will assume that the underlying physical model is given by an infinite elastic…

偏微分方程分析 · 数学 2025-10-10 Rafael Ceja Ayala , Isaac Harris , Andreas Kleefeld

We consider a semi-infinite spatially dispersive dielectric with unequal transverse and longitudinal susceptibilities. The effect of the boundary is characterized by arbitrary reflection coefficients for polarization waves in the material…

光学 · 物理学 2017-01-09 R. J. Churchill , T. G. Philbin

The wave propagation problem on a taut cable resting on a bilinear substrate is investigated, without and with a distribute transversal load. The piecewise nature of the problem offers a sufficiently simple kind of nonlinearity as to permit…

数学物理 · 物理学 2022-03-17 Lucio Demeio , Stefano Lenci

In this paper, we present results about the existence and uniqueness of solutions of elliptic equations with transmission and Wentzell boundary conditions. We provide Schauder estimates and existence results in H\"older spaces. As an…

偏微分方程分析 · 数学 2018-01-25 Hung Le

This manuscript focus on in the transmission problem for one dimensional waves with nonlinear weights on the frictional damping and time-varying delay. We prove global existence of solutions using Kato's variable norm technique and we show…

偏微分方程分析 · 数学 2021-02-17 Carlos A. S. Nonato , Carlos A. Raposo , Waldemar D. Bastos

We consider the scattering of elastic waves by highly oscillating anisotropic periodic media with bounded support. Applying the two-scale homogenization, we first obtain a constant coefficient second-order partial differential elliptic…

偏微分方程分析 · 数学 2018-02-06 Yi-Hsuan Lin , Shixu Meng

We develop a model for the reflection and transmission of plane waves by an isotropic layer sandwiched between two uniaxial crystals of arbitrary orientation. In the laboratory frame, reflection and transmission coefficients corresponding…

材料科学 · 物理学 2009-04-29 Erik S. Thomson , Larry A. Wilen , John S. Wettlaufer

The magnetic Dirichlet-to-Neumann map encodes the voltage-to-current measurements under the influence of a magnetic field. In the case of surfaces, we provide precise spectral asymptotics expansion (up to arbitrary polynomial power) for the…

偏微分方程分析 · 数学 2025-08-15 Mihajlo Cekić , Anna Siffert

We consider the inverse problem of determining the Lam\'{e} parameters and the density of a three-dimensional elastic body from the local time-harmonic Dirichlet-to-Neumann map. We prove uniqueness and Lipschitz stability of this inverse…

偏微分方程分析 · 数学 2014-12-12 Elena Beretta , Maarten V. de Hoop , Elisa Francini , Sergio Vessella , Jian Zhai

The propagation of waves in soft dielectric elastomer layers is investigated. To this end incremental motions superimposed on homogeneous finite deformations induced by bias electric fields and pre-stretch are determined. First we examine…

软凝聚态物质 · 物理学 2011-11-22 Gal Shmuel , Massimiliano Gei , Gal deBotton

We consider a nonlocal semi-linear parabolic equation on a connected exterior domain of the form $\mathbb{R}^N\setminus K$, where $K\subset\mathbb{R}^N$ is a compact "obstacle". The model we study is motivated by applications in biology and…

偏微分方程分析 · 数学 2020-05-29 Julien Brasseur , Jérôme Coville

Effective interface conditions for a periodically voided thin layer separating two homogeneous bulk regions are derived for the elastic wave equation by taking the simultaneous limit of vanishing layer periodicity and layer thickness. The…

偏微分方程分析 · 数学 2026-03-30 Markus Gahn , Tanja Lochner , Malte A. Peter

We introduce and analyze a nonlocal version of the one-phase Stefan problem in which, as in the classical model, the rate of growth of the volume of the liquid phase is proportional to the rate at which energy is lost through the…

偏微分方程分析 · 数学 2018-05-09 Carmen Cortázar , Fernando Quirós , Noemí Wolanski

Potential scattering problems governed by the time-dependent Gross-Pitaevskii equation are investigated numerically for various values of coupling constants. The initial condition is assumed to have the Gaussian-type envelope, which differs…

量子气体 · 物理学 2012-09-28 Hironobu Fujishima , Makoto Mine , Masahiko Okumura , Tetsu Yajima

We examine two types of guided waves: the Love and the quasi-Rayleigh waves. Both waves propagate in the same model of an elastic isotropic layer above an elastic isotropic halfspace. From their dispersion relations, we calculate their…

地球物理 · 物理学 2016-07-26 David R. Dalton , Michael A. Slawinski , Piotr Stachura , Theodore Stanoev

In this paper, we embark on a captivating exploration of the stabilization of locally transmitted problems within the realm of two interconnected wave systems. To begin, we wield the formidable Arendt-Batty criteria\cite{AW} to affirm the…

偏微分方程分析 · 数学 2023-10-13 Wafa Ahmedi , Akram Ben Aissa

This work is devoted to the analysis of high frequency solutions to the equations of nonlinear elasticity in a half-space. We consider surface waves (or more precisely, Rayleigh waves) arising in the general class of isotropic hyperelastic…

偏微分方程分析 · 数学 2016-04-18 Jean-Francois Coulombel , Mark Williams