Finite element treatment of boundary singularities by augmentation with non-exact singular functions

Singularities of the Laplacian at corner

Singularities of the Laplacian at corners and edges of three-dimensional domains and their treatment with finite element methods

✍ E. Stephan; J. R. Whiteman 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 475 KB

## Communicated by W. Wendland Three-dimensional Poisson problems containing boundary singularities are treated. The forms of the solutions for certain problems of this type are derived, where the domains of the problems can be represented in terms either of sphericalor of cylindrical-polar co-ord