[PDF][PDF] Time-dependent problems with the boundary integral equation method

M Costabel, FJ Sayas - Encyclopedia of computational …, 2004 - perso.univ-rennes1.fr
Time-dependent problems that are modeled by initial-boundary value problems for
parabolic or hyperbolic partial differential equations can be treated with the boundary …

Bayesian approach to inverse scattering with topological priors

A Carpio, S Iakunin, G Stadler - Inverse Problems, 2020 - iopscience.iop.org
We propose a Bayesian inference framework to estimate uncertainties in inverse scattering
problems. Given the observed data, the forward model and their uncertainties, we find the …

Stability estimates of Nyström discretizations of Helmholtz decomposition boundary integral equation formulations for the solution of Navier scattering problems in two …

V Domínguez, C Turc - IMA Journal of Numerical Analysis, 2024 - academic.oup.com
Helmholtz decompositions of elastic fields is a common approach for the solution of Navier
scattering problems. Used in the context of boundary integral equations (BIE), this approach …

Boundary and coupled boundary–finite element methods for transient wave–structure interaction

GC Hsiao, T Sánchez-Vizuet… - IMA Journal of Numerical …, 2017 - academic.oup.com
We propose time-domain boundary integral and coupled boundary integral and variational
formulations for acoustic scattering by linearly elastic obstacles. Well-posedness along with …

Boundary integral solvers for an evolutionary exterior Stokes problem

C Bacuta, ME Hassell, GC Hsiao, FJ Sayas - SIAM Journal on Numerical …, 2015 - SIAM
This paper proposes and analyzes a full discretization of the exterior transient Stokes
problem with Dirichlet boundary conditions. The method is based on a single layer boundary …

An inverse acoustic waveguide problem in the time domain

P Monk, V Selgas - Inverse Problems, 2016 - iopscience.iop.org
We consider the problem of locating an obstacle in a waveguide from time domain
measurements of causal waves. More precisely, we assume that we are given the scattered …

The Costabel-Stephan system of boundary integral equations in the time domain

T Qiu, FJ Sayas - Mathematics of Computation, 2016 - ams.org
In this paper we formulate a transmission problem for the transient acoustic wave equation
as a system of retarded boundary integral equations. We then analyse a fully discrete …

[HTML][HTML] A fully discrete Calderón calculus for the two-dimensional elastic wave equation

V Domínguez, T Sánchez-Vizuet, FJ Sayas - Computers & Mathematics …, 2015 - Elsevier
In this paper we present a full discretization of the layer potentials and boundary integral
operators for the elastic wave equation on a parametrizable smooth closed curve in the …

A plane-wave singularity subtraction technique for the classical Dirichlet and Neumann combined field integral equations

C Pérez-Arancibia - Applied Numerical Mathematics, 2018 - Elsevier
This paper presents expressions for the classical combined field integral equations for the
solution of Dirichlet and Neumann exterior Helmholtz problems on the plane, in terms of …

High-order Nyström discretizations for the solution of integral equation formulations of two-dimensional Helmholtz transmission problems

Y Boubendir, C Turc… - IMA Journal of Numerical …, 2016 - academic.oup.com
We present and analyse fully discrete Nyström methods for the solution of three classes of
well-conditioned boundary integral equations for the solution of two-dimensional scattering …