{ "id": "0912.3506", "version": "v1", "published": "2009-12-17T20:10:29.000Z", "updated": "2009-12-17T20:10:29.000Z", "title": "On the Large Time Behavior of Solutions of the Dirichlet problem for Subquadratic Viscous Hamilton-Jacobi Equations", "authors": [ "Guy Barles", "Alessio Porretta", "Thierry Wilfried Tabet Tchamba" ], "journal": "Journal de Math\\'ematiques Pures et Appliqu\\'ees (9) 94, 5 (2010) 497-519", "categories": [ "math.AP" ], "abstract": "In this article, we are interested in the large time behavior of solutions of the Dirichlet problem for subquadratic viscous Hamilton-Jacobi Equations. In the superquadratic case, the third author has proved that these solutions can have only two different behaviors: either the solution of the evolution equation converges to the solution of the associated stationary generalized Dirichlet problem (provided that it exists) or it behaves like $-ct+\\varphi (x)$ where $c\\geq0$ is a constant, often called the \"ergodic constant\" and $\\varphi$ is a solution of the so-called \"ergodic problem\". In the present subquadratic case, we show that the situation is slightly more complicated: if the gradient-growth in the equation is like $|Du|^m$ with $m>3/2,$ then analogous results hold as in the superquadratic case, at least if $c>0.$ But, on the contrary, if $m\\leq 3/2$ or $c=0,$ then another different behavior appears since $u(x,t) + ct$ can be unbounded from below where $u$ is the solution of the subquadratic viscous Hamilton-Jacobi Equations.", "revisions": [ { "version": "v1", "updated": "2009-12-17T20:10:29.000Z" } ], "analyses": { "subjects": [ "35K55", "35B40", "49L25" ], "keywords": [ "subquadratic viscous hamilton-jacobi equations", "large time behavior", "superquadratic case", "associated stationary generalized dirichlet problem" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0912.3506B" } } }