In this work, we investigate mathematical models for electromagnetic wave propagation in
dispersive isotropic media. We emphasize the link between physical requirements and …

Our interest in the study and computation of electromagnetic fields started during the 1990s.
For Franck Assous, it originated from the need to compute precisely the motion of charged …

We review a selected history of anomalous resonance, cloaking due to anomalous
resonance, cloaking due to complementary media, and superlensing. Résumé. Nous …

Acoustic wave propagation in dispersive metamaterials is considered. A prototypical
example stems from the homogenization of a waveguide coupled with Helmholtz resonators …

Using a sum rule, we derive new bounds on Herglotz functions that generalize those given
in Bernland et al.[J. Phys. A: Math. Theor. 44 (14), 145205 (2011)] and Gustafsson and …

This paper is concerned with the time-dependent Maxwell's equations for a plane interface
between a negative material described by the Drude model and the vacuum, which fill …

The paper determines and classifies the spectrum of a non-self-adjoint operator pencil
generated by the time-harmonic Maxwell problem with a nonlinear dependence on the …

We study the numerical approximation of sign-shifting problems of elliptic type. We fully
analyze and assess the method briefly introduced in [A. Abdulle, ME Huber and S. Lemaire …

The purpose of this paper is to investigate the spectral effects of an interface between
vacuum and a negative-index material (NIM), that is, a dispersive material whose electric …

We establish spectral enclosures and spectral approximation results for the inhomogeneous
lossy Drude-Lorentz system with purely imaginary poles, in a possibly unbounded Lipschitz …