{ "id": "1008.4222", "version": "v2", "published": "2010-08-25T07:32:31.000Z", "updated": "2011-10-26T12:59:27.000Z", "title": "Boundary Trace of Positive Solutions of Semilinear Elliptic Equations in Lipschitz Domains: The Subcritical Case", "authors": [ "Moshe Marcus", "Laurent Veron" ], "comment": "To appear in Annali Scuola Normale Superiore Pisa. arXiv admin note: substantial text overlap with arXiv:0907.1006", "categories": [ "math.AP" ], "abstract": "We study the generalized boundary value problem for nonnegative solutions of of $-\\Delta u+g(u)=0$ in a bounded Lipschitz domain $\\Omega$, when $g$ is continuous and nondecreasing. Using the harmonic measure of $\\Omega$, we define a trace in the class of outer regular Borel measures. We amphasize the case where $g(u)=|u|^{q-1}u$, $q>1$. When $\\Omega$ is (locally) a cone with vertex $y$, we prove sharp results of removability and characterization of singular behavior. In the general case, assuming that $\\Omega$ possesses a tangent cone at every boundary point and $q$ is subcritical, we prove an existence and uniqueness result for positive solutions with arbitrary boundary trace.", "revisions": [ { "version": "v2", "updated": "2011-10-26T12:59:27.000Z" } ], "analyses": { "keywords": [ "semilinear elliptic equations", "lipschitz domain", "positive solutions", "subcritical case", "outer regular borel measures" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1008.4222M" } } }