Abstract
We consider the variational formulation of the electric field integral equation on bounded polyhedral open or closed surfaces. We employ a conforming Galerkin discretization based on divΓ-conforming Raviart-Thomas boundary elements of locally variable polynomial degree on shape-regular surface meshes. We establish asymptotic quasi optimality of Galerkin solutions on sufficiently fine meshes or for sufficiently high polynomial degrees. © 2010 Society for Industrial and Applied Mathematics.
| Original language | English |
|---|---|
| Pages (from-to) | 1518-1529 |
| Number of pages | 11 |
| Journal | SIAM JOURNAL ON NUMERICAL ANALYSIS |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2010 |
Keywords
- Boundary element method
- Electric field integral equation
- Electromagnetic scattering
- Galerkin discretization
- Hp-refinement
- Noncoercive variational problems
- Projection-based interpolation
- Smoothed Poincaré mapping