37 citations · 137 across the 29 of their papers we have counts for
4 papers · 1 filter
Construction of invisible conductivity perturbations for the point electrode model in electrical impedance tomography
Lucas Chesnel, Nuutti Hyvönen, Stratos Staboulis
We explain how to build invisible isotropic conductivity perturbations of the unit conductivity in the framework of the point electrode model for two-dimensional electrical impedan…
A numerical approach for the Poisson equation in a planar domain with a small inclusion
Lucas Chesnel, Xavier Claeys
We consider the Poisson equation in a domain with a small hole of size . We present a simple numerical method, based on an asymptotic analysis, which allows to approximate robus…
Non-scattering wavenumbers and far field invisibility for a finite set of incident/scattering directions
Anne-Sophie Bonnet-Ben Dhia, Lucas Chesnel, Sergei A. Nazarov
We investigate a time harmonic acoustic scattering problem by a penetrable inclusion with compact support embedded in the free space. We consider cases where an observer can produc…
Spectrum of a diffusion operator with coefficient changing sign over a small inclusion
Lucas Chesnel, Xavier Claeys, Sergei A. Nazarov
We study a spectral problem for a diffusion like equation in a 3D domain . The main originality lies in the presence of a parameter , whose sign changes o…