{ "id": "1406.7415", "version": "v1", "published": "2014-06-28T15:42:29.000Z", "updated": "2014-06-28T15:42:29.000Z", "title": "Bifurcation curves of a logistic equation when the linear growth rate crosses a second eigenvalue", "authors": [ "Pedro M. GirĂ£o" ], "comment": "This is an extended version of the published paper", "journal": "Nonlinear Analysis: Theory, Methods & Applications 74 (2011), 94-113", "doi": "10.1016/j.na.2010.08.020", "categories": [ "math.AP" ], "abstract": "We construct the global bifurcation curves, solutions versus level of harvesting, for the steady states of a diffusive logistic equation on a bounded domain, under Dirichlet boundary conditions and other appropriate hypotheses, when $a$, the linear growth rate of the population, is below $\\lambda_2+\\delta$. Here $\\lambda_2$ is the second eigenvalue of the Dirichlet Laplacian on the domain and $\\delta>0$. Such curves have been obtained before, but only for $a$ in a right neighborhood of the first eigenvalue. Our analysis provides the exact number of solutions of the equation for $a\\leq\\lambda_2$ and new information on the number of solutions for $a>\\lambda_2$.", "revisions": [ { "version": "v1", "updated": "2014-06-28T15:42:29.000Z" } ], "analyses": { "subjects": [ "35B32", "35J66", "37B30", "92D25" ], "keywords": [ "linear growth rate crosses", "second eigenvalue", "global bifurcation curves", "dirichlet boundary conditions", "diffusive logistic equation" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1406.7415G" } } }