In this paper we propose a method for constrained shape optimization governed with a nonlinear axisymmetric magnetostatic state problem and we apply it to an optimal shape design of an electromagnet. The state problem is solved via Hiptmair’s symmetric coupling of finite elements employed in...

We will discuss three possibilities of how to improve the approximation quality of boundary element approximations for integral equations of the first kind on smooth planar curves. First we comment on iterated finite element solutions, then on reduced integration techniques resulting in...