Figure 2From: An a priori error estimate for interior penalty discretizations of the Curl-Curl operator on non-conforming meshes Non-conforming overlap of two submeshes. Consider two cuboids stacked upon each other (similar to Figure 1) which are meshed individually. This figure shows the restriction of the two submeshes \(\mathcal {T}_{h,1}\) and \(\mathcal{T}_{h,2}\) to the common interface and the inner/boundary intersections are marked.Back to article page