{ "id": "1811.03839", "version": "v1", "published": "2018-11-09T09:57:14.000Z", "updated": "2018-11-09T09:57:14.000Z", "title": "Multilevel Schwarz preconditioners for singularly perturbed symmetric reaction-diffusion systems", "authors": [ "José Pablo Lucero Lorca", "Guido Kanschat" ], "comment": "19 pages, 5 tables", "categories": [ "math.NA", "cs.NA" ], "abstract": "We present robust and highly parallel multilevel non-overlapping Schwarz preconditioners, to solve an interior penalty discontinuous Galerkin finite element discretization of a system of steady state, singularly perturbed reaction-diffusion equations with a singular reaction operator, using a GMRES solver. We provide proofs of convergence for the two-level setting and the multigrid V-cycle as well as numerical results for a wide range of regimes.", "revisions": [ { "version": "v1", "updated": "2018-11-09T09:57:14.000Z" } ], "analyses": { "subjects": [ "65N55", "65N30", "65J10", "65F08" ], "keywords": [ "singularly perturbed symmetric reaction-diffusion systems", "multilevel schwarz preconditioners", "galerkin finite element discretization", "penalty discontinuous galerkin finite", "multilevel non-overlapping schwarz preconditioners" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }