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Discontinuous Galerkin methods with Trefftz approximations

  • Autores: Fritz Kretzschmar, Sascha Schnepp, Igor Tsukerman, Thomas Weiland
  • Localización: Journal of computational and applied mathematics, ISSN 0377-0427, Vol. 270, Nº 1, 2014, págs. 211-222
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • We present a novel Discontinuous Galerkin Finite Element Method for wave propagation problems. The method employs space�time Trefftz basis functions that satisfy the underlying partial differential equations and the respective interface boundary conditions exactly in an element-wise fashion. The basis functions can be of arbitrarily high order and we demonstrate spectral convergence in the space�time L2-norm. Therefore high order time integration is an inherent property of the method and clearly sets it apart from methods that employ a high order approximation in space only.


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