{ "id": "1006.2020", "version": "v1", "published": "2010-06-10T13:01:33.000Z", "updated": "2010-06-10T13:01:33.000Z", "title": "Existence and uniqueness of limit cycles in a class of second order ODE's with inseparable mixed terms", "authors": [ "Marco Sabatini" ], "categories": [ "math.DS" ], "abstract": "We prove a uniqueness result for limit cycles of the second order ODE $\\ddot x + \\dot x \\phi(x,\\dot x) + g(x) = 0$. Under mild additional conditions, we show that such a limit cycle attracts every non-constant solution. As a special case, we prove limit cycle's uniqueness for an ODE studied in \\cite{ETA} as a model of pedestrians' walk. This paper is an extension to equations with a non-linear $g(x)$ of the results presented in \\cite{S}.", "revisions": [ { "version": "v1", "updated": "2010-06-10T13:01:33.000Z" } ], "analyses": { "subjects": [ "34C05" ], "keywords": [ "second order ode", "inseparable mixed terms", "limit cycles uniqueness", "limit cycle attracts", "mild additional conditions" ], "tags": [ "journal article" ], "publication": { "doi": "10.1016/j.chaos.2010.07.002", "journal": "Chaos Solitons and Fractals", "year": 2010, "month": "Dec", "volume": 43, "number": "1-12", "pages": 25 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010CSF....43...25S" } } }