On the Fr\'echet derivative in elastic obstacle scattering
Numerical Analysis
2011-03-08 v1
Abstract
In this paper, we investigate the existence and characterizations of the Fr\'echet derivatives of the solution to time-harmonic elastic scattering problems with respect to the boundary of the obstacle. Our analysis is based on a technique - the factorization of the difference of the far-field pattern for two different scatterers - introduced by Kress and Pa\"ivarinta to establish Fr\'echet differentiability in acoustic scattering. For the Dirichlet boundary condition an alternative proof of a differentiability result due to Charalambopoulos is provided and new results are proven for the Neumann and impedance exterior boundary value problems.
Cite
@article{arxiv.1103.1229,
title = {On the Fr\'echet derivative in elastic obstacle scattering},
author = {Frédérique Le Louër},
journal= {arXiv preprint arXiv:1103.1229},
year = {2011}
}