 |^0 \right) ^{\frac{0}{0}} \\\le & {} \tau _m \int _\varOmega (e^m_h)^0 \rho ^m|\nabla \phi ^{m}|+ C \epsilon h^0 \int _{t_{m-0}}^{t_m} \left( \Vert \partial ^{\bullet }_t u(\cdot ,t) \Vert _{H^0(\varGamma (t))}^0 \right