Chauviere, C.Hesthaven, Jan S.Kanevsky, A.Warburton, T.2013-11-122013-11-122013-11-12200310.1016/B978-008044046-0.50461-9https://infoscience.epfl.ch/handle/20.500.14299/96835WOS:000184938200458We discuss two time integration techniques, aimed at overcoming local grid-induced stiffness in discontinuous Galerkin methods. A local time-stepping approach, utilizing the local properties of the scheme, is shown to work very well. Recently developed additive Runge-Kutta methods are more general and found to be promising when combined with efficient local preconditioning.discontinuous Galerkin methodspenalty methodsnodal elementsunstructured gridslocal time-steppingadditive Runge-Kutta methodshigh-order accuracygrid induced stiffnessMaxwell's equationsconservation lawstext::conference output::conference proceedings::conference paper