@@ -360,6 +360,7 @@ We linearize the nonlinear \cref{eq:mhfem:v_iKE} in time again using the method
where the values of $b_{i,j,K,E}$ and $b_{i,j,K,E,F}$ are evaluated at the time level $t_k$, but the superscript $k$ is omitted for clarity.
\subsection{Discretization of boundary conditions}
\label{sec:mhfem:boundary conditions}
For the discretization of boundary conditions, we assume that a condition of exactly one type is given on all boundary faces $E \in\mathcal E_h^{\mathrm{ext}}$, i.e., for all $j \in\{1, \ldots, n \}$, we have either $E \subset\Gamma_j^{\mathcal D}$ or $E \subset\Gamma_j^{\mathcal N_1}$ or $E \subset\Gamma_j^{\mathcal N_2}$.
