{ "id": "1208.6562", "version": "v1", "published": "2012-08-31T18:03:49.000Z", "updated": "2012-08-31T18:03:49.000Z", "title": "Solvability of nonlinear elliptic equations with gradient terms", "authors": [ "Patricio Felmer", "Alexander Quaas", "Boyan Sirakov" ], "categories": [ "math.AP" ], "abstract": "We study the solvability in the whole Euclidean space of coercive quasi-linear and fully nonlinear elliptic equations modeled on $\\Delta u\\pm g(|\\nabla u|)= f(u)$, $u\\ge0$, where $f$ and $g$ are increasing continuous functions. We give conditions on $f$ and $g$ which guarantee the availability or the absence of positive solutions of such equations in $\\R^N$. Our results considerably improve the existing ones and are sharp or close to sharp in the model cases. In particular, we completely characterize the solvability of such equations when $f$ and $g$ have power growth at infinity. We also derive a solvability statement for coercive equations in general form.", "revisions": [ { "version": "v1", "updated": "2012-08-31T18:03:49.000Z" } ], "analyses": { "keywords": [ "gradient terms", "fully nonlinear elliptic equations", "euclidean space", "model cases", "power growth" ], "tags": [ "journal article" ], "publication": { "doi": "10.1016/j.jde.2013.03.003", "journal": "Journal of Differential Equations", "year": 2013, "volume": 254, "number": 11, "pages": 4327 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013JDE...254.4327F" } } }