Abstract
The invention of an image system for a boundary value problem adds to a significant understanding of the structure of the problem, both at the mathematical and at the physical level. In this paper, the interior and exterior Neumann functions for the Laplacian in the cases of spherical and ellipsoidal domains are represented in terms of images. Besides isolated images, the presence of the normal derivative in the Neumann condition demands an additional continuous distribution of images, which in the spherical cases, can be restricted to a one‐dimensional manifold, whereas for the ellipsoid, both a one‐dimensional and a two‐dimensional distribution of images is needed.
| Original language | English |
|---|---|
| Pages (from-to) | 482-496 |
| Journal | Mathematical Methods in the Applied Sciences |
| Volume | 35 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2012 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- Neumann boundary condition
- Neumann function
- image system
- ellipsoidal geometry
- ellipsoidal harmonics