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dc.contributor.authorAmara, M.
dc.contributor.authorCalandra, H.
dc.contributor.authorDejllouli, R.
dc.contributor.authorGrigoroscuta-Strugaru, M.
dc.date.accessioned2017-02-21T08:19:28Z
dc.date.available2017-02-21T08:19:28Z
dc.date.issued2012-12-31
dc.identifier.issn0045-7949
dc.identifier.urihttp://hdl.handle.net/20.500.11824/614
dc.description.abstractWe propose a stable discontinuous Galerkin-type method (SDGM) for solving efficiently Helmholtz problems. This mixed-hybrid formulation is a two-step procedure. Step 1 consists in solving well-posed problems at the element partition level of the computational domain, whereas Step 2 requires the solution of a global system whose unknowns are the Lagrange multipliers. The main features of SDGM include: (a) the resulting local problems are associated with small positive definite Hermitian matrices that can be solved in parallel, and (b) the matrix corresponding to the global linear system arising in Step 2 is Hermitian and positive semi-definite. Illustrative numerical results for two-dimensional waveguide and scattering problems highlight the potential of SDGM for solving efficiently Helmholtz problems in mid- and high-frequency regime.
dc.formatapplication/pdf
dc.language.isoengen_US
dc.rightsReconocimiento-NoComercial-CompartirIgual 3.0 Españaen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/es/en_US
dc.subjectDiscontinuous Galerkin
dc.subjectHelmholtz equation
dc.subjectPlane waves
dc.subjectScattering problems
dc.subjectStability
dc.subjectWaveguide problems
dc.titleA stable discontinuous Galerkin-type method for solving efficiently Helmholtz problemsen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.identifier.doi10.1016/j.compstruc.2012.05.007
dc.relation.publisherversionhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84863806755&doi=10.1016%2fj.compstruc.2012.05.007&partnerID=40&md5=0accdf56a07f2d65381e3b05f8166ce9
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen_US
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersionen_US
dc.journal.titleComputers and Structuresen_US


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Reconocimiento-NoComercial-CompartirIgual 3.0 España
Except where otherwise noted, this item's license is described as Reconocimiento-NoComercial-CompartirIgual 3.0 España