{ "id": "1109.1128", "version": "v1", "published": "2011-09-06T09:43:42.000Z", "updated": "2011-09-06T09:43:42.000Z", "title": "Global dynamics under a weak potential on a sphere", "authors": [ "Roberto Castelli", "Francesco Paparella", "Alessandro Portaluri" ], "comment": "20 pages, 6 figures", "categories": [ "math.DS" ], "abstract": "We give a detailed analytical description of the global dynamics of a point mass moving on a sphere under the action of a logarithmic potential. After performing a McGehee-type blow-up in order to cope with the singularity of the potential, we investigate the rest-points of the flow, the invariant (stable and unstable) manifolds and we give a complete dynamical description of the motion.", "revisions": [ { "version": "v1", "updated": "2011-09-06T09:43:42.000Z" } ], "analyses": { "subjects": [ "70F10", "37C80" ], "keywords": [ "global dynamics", "weak potential", "complete dynamical description", "logarithmic potential", "mcgehee-type blow-up" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1109.1128C" } } }