{ "id": "1905.08467", "version": "v1", "published": "2019-05-21T07:22:23.000Z", "updated": "2019-05-21T07:22:23.000Z", "title": "Nonexistence of solutions for Dirichlet problems with supercritical growth in tubular domains", "authors": [ "Riccardo Molle", "Donato Passaseo" ], "comment": "14 pages", "categories": [ "math.AP" ], "abstract": "We deal with Dirichlet problems of the form $$ \\Delta u+f(u)=0 \\mbox{ in }\\Omega,\\qquad u=0\\ \\mbox{ on }\\partial \\Omega $$ where $\\Omega$ is a bounded domain of $\\mathbb{R}^n$, $n\\ge 3$, and $f$ has supercritical growth from the viewpoint of Sobolev embedding. In particular, we consider the case where $\\Omega$ is a tubular domain $T_\\varepsilon(\\Gamma_k)$ with thickness $\\varepsilon>0$ and centre $\\Gamma_k$, a $k$-dimensional, smooth, compact submanifold of $\\mathbb{R}^n$. Our main result concerns the case where $k=1$ and $\\Gamma_k$ is contractible in itself. In this case we prove that the problem does not have nontrivial solutions for $\\varepsilon>0$ small enough. When $k\\ge 2$ or $\\Gamma_k$ is noncontractible in itself we obtain weaker nonexistence results. Some examples show that all these results are sharp for what concerns the assumptions on $k$ and $f$.", "revisions": [ { "version": "v1", "updated": "2019-05-21T07:22:23.000Z" } ], "analyses": { "keywords": [ "dirichlet problems", "tubular domain", "supercritical growth", "main result concerns", "weaker nonexistence results" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }