{ "id": "1302.1137", "version": "v1", "published": "2013-02-05T18:02:54.000Z", "updated": "2013-02-05T18:02:54.000Z", "title": "About the homological discrete Conley index of isolated invariant acyclic continua", "authors": [ "Luis Hernández-Corbato", "Patrice Le Calvez", "Francisco R. Ruiz del Portal" ], "comment": "35 pages", "categories": [ "math.DS", "math.GT" ], "abstract": "This article includes an almost self-contained exposition on the discrete Conley index and its duality. We work with a local homeomorphism of $\\mathds{R}^d$ and an invariant and isolated acyclic continuum, such as a cellular set or a fixed point. In this setting, we obtain a complete description of the first discrete homological Conley index, which is periodic, that enforces a combinatorial behavior of higher indices. As a consequence, we prove that isolated (as an invariant set) fixed points of orientation-reversing homeomorphisms of $\\mathds{R}^3$ have fixed point index $\\le 1$ and, as a corollary, that there are no minimal orientation-reversing homeomorphisms in $\\mathds{R}^3$.", "revisions": [ { "version": "v1", "updated": "2013-02-05T18:02:54.000Z" } ], "analyses": { "subjects": [ "37C25", "37B30", "54H25" ], "keywords": [ "acyclic continuum", "isolated invariant acyclic continua", "homological discrete conley index", "fixed point", "first discrete homological conley index" ], "note": { "typesetting": "TeX", "pages": 35, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1302.1137H" } } }