{ "id": "0912.3553", "version": "v2", "published": "2009-12-17T23:04:54.000Z", "updated": "2010-06-02T22:13:41.000Z", "title": "Asymptotic Behavior for a Nonlocal Diffusion Equation with Absorption and Nonintegrable Initial Data. the Supercritical Case", "authors": [ "Joana Terra", "Noemi Wolanski" ], "categories": [ "math.AP" ], "abstract": "In this paper we study the asymptotic behavior as time goes to infinity of the solution to a nonlocal diffusion equation with absorption modeled by a powerlike reaction $-u^p$, $p>1$ and set in $\\R^N$. We consider a bounded, nonnegative initial datum $u_0$ that behaves like a negative power at infinity. That is, $|x|^\\alpha u_0(x)\\to A>0$ as $|x|\\to\\infty$ with $0<\\alpha\\le N$. We prove that, in the supercritical case $p>1+2/\\alpha$, the solution behaves asymptotically as that of the heat equation --with diffusivity $\\a$ related to the nonlocal operator-- with the same initial datum.", "revisions": [ { "version": "v2", "updated": "2010-06-02T22:13:41.000Z" } ], "analyses": { "subjects": [ "35K57" ], "keywords": [ "nonlocal diffusion equation", "nonintegrable initial data", "asymptotic behavior", "supercritical case", "absorption" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0912.3553T" } } }