Multilevel Method for Mixed Eigenproblems

For a Lipschitz-polyhedron $\Omega\subset\mathbb{R}^3$ we consider eigenvalue problems $\operatorname{\bf curl}\alpha\operatorname{\bf curl}\mathbf{u}=\lambda\mathbf{u}$ and $\operatorname{grad}\alpha\operatorname{div}\mathbf{u} = \lambda\mathbf{u}$, $\lambda>0$, set in $\boldsymbol{H}(\operatorname... View More