caa a22 4500 378936700 CHVBK 20180305123642.0 cr unu---uuuuu 161128s2004 xx s 000 0 eng 10.2478/cmam-2004-0024 doi (NATIONALLICENCE)gruyter-10.2478/cmam-2004-0024 Solution of a Wave Equation by a Mixed Finite Element - Fictitious Domain Method [Elektronische Daten] The main goal of this article is to investigate the capability of fictitious domain methods to simulate the scattering of linear waves by an obstacle whose shape does not fit the mesh. The space-time discretization relies on a combination of a mixed finite element method µa la Raviart-Thomas with a fairly standard finite difference scheme for the time discretization. The numerical results described in the article point to a good performance of the numerical method investigated here. This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. finite element method nationallicence fictitious domain method nationallicence Lagrange multipliers nationallicence Glowinski Roland University of Houston, Department of Mathematics, Houston, TX, 77204, USA. Lapin Serguei University of Houston, Department of Mathematics, Houston, TX, 77204, USA. Computational Methods in Applied Mathematics De Gruyter 4/4(2004), 431-444 1609-4840 4:4<431 2004 4 cmam https://doi.org/10.2478/cmam-2004-0024 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.2478/cmam-2004-0024 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Glowinski Roland University of Houston, Department of Mathematics, Houston, TX, 77204, USA NATIONALLICENCE 700 1- Lapin Serguei University of Houston, Department of Mathematics, Houston, TX, 77204, USA NATIONALLICENCE 773 0- Computational Methods in Applied Mathematics De Gruyter 4/4(2004), 431-444 1609-4840 4:4<431 2004 4 cmam CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter