Browsing by Author "Roos, Hans–Göerg"
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- ItemOptimal error estimates for nonstationary singularly perturbed problems for low discretization orders(Technická univerzita v Liberci, Česká republika, 2012) Vlasák, Miloslav; Roos, Hans–GöergWe consider an unsteady 1D singularly perturbed convection–diffusion problem. We discretize such a problem by the linear finite element method (FEM) on a Shishkin mesh and by a discon- tinuous Galerkin method in time. We present optimal a priori error estimates for low order time discretizations.