Figure 9

Definition of \(\gamma^{\mathrm{in}}\). Adaptive definition of \(\gamma^{\mathrm{in}}\) in the case of minimal overlap between \(\Omega^{\mathrm{in}}_{h}\) and \(\Omega ^{\mathrm{ex}}_{h}\). Note that, \(\gamma^{\mathrm{ex}}\) (magenta) remains fixed, while \(\gamma^{\mathrm{in}}\) (red) changes due to the refinements in \(\Omega^{\mathrm{in}}_{h}\). The interior edges of elements of \(\mathcal{T}^{\mathrm{ex}}\) and \(\mathcal{T}^{\mathrm{in}}\) are omitted for clearness