6 citations · 18 across the 7 of their papers we have counts for
4 papers · 1 filter
Finite element solution of a radiation/propagation problem for a Helmholtz equation with a compactly supported nonlinearity
Lutz Angermann
A finite element approach for approximating the solution of a mathematical model for the response of a penetrable, bounded object (obstacle) to the excitation by an external electr…
An Energy Stable Discontinuous Galerkin Time-Domain Finite Element Method in Optics and Photonics
Asad Anees, Lutz Angermann
In this paper, a time-domain discontinuous Galerkin (TDdG) finite element method for the full system of Maxwell's equations in optics and photonics is investigated, including a com…
A radiation and propagation problem for a Helmholtz equation with a compactly supported nonlinearity
Lutz Angermann
The present work describes some extensions of an approach, originally developed by V.V. Yatsyk and the author, for the theoretical and numerical analysis of scattering and radiatio…
Error estimates for completely discrete FEM in energy-type and weaker norms
Lutz Angermann, Peter Knabner, Andreas Rupp
The paper presents error estimates within a unified abstract framework for the analysis of FEM for boundary value problems with linear diffusion-convection-reaction equations and b…