{ "id": "1107.5783", "version": "v1", "published": "2011-07-28T18:11:52.000Z", "updated": "2011-07-28T18:11:52.000Z", "title": "Numerical analysis of semilinear elliptic equations with finite spectral interaction", "authors": [ "José Cal Neto", "Carlos Tomei" ], "comment": "20 pages, 15 figures (34 .eps files)", "categories": [ "math.AP", "math.FA", "math.NA" ], "abstract": "We present an algorithm to solve $- \\lap u - f(x,u) = g$ with Dirichlet boundary conditions in a bounded domain $\\Omega$. The nonlinearities are non-resonant and have finite spectral interaction: no eigenvalue of $-\\lap_D$ is an endpoint of $\\bar{\\partial_2f(\\Omega,\\RR)}$, which in turn only contains a finite number of eigenvalues. The algorithm is based in ideas used by Berger and Podolak to provide a geometric proof of the Ambrosetti-Prodi theorem and advances work by Smiley and Chun for the same problem.", "revisions": [ { "version": "v1", "updated": "2011-07-28T18:11:52.000Z" } ], "analyses": { "subjects": [ "35B32", "35J91", "65N30" ], "keywords": [ "finite spectral interaction", "semilinear elliptic equations", "numerical analysis", "dirichlet boundary conditions", "eigenvalue" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1107.5783C" } } }