{ "id": "1706.05050", "version": "v1", "published": "2017-06-15T19:13:13.000Z", "updated": "2017-06-15T19:13:13.000Z", "title": "Topology of Functions with Isolated Critical Points on the Boundary of a 2-dimensional Manifold", "authors": [ "Bohdana Hladysh", "Aleksandr Prishlyak" ], "comment": "15 pages", "categories": [ "math.GT" ], "abstract": "This paper focuses on the problem of topological equivalence of functions with isolated critical points on the boundary of a compact surface $M$ which are also isolated critical points of their restrictions to the boundary. This class of functions we denote by $\\Omega(M).$ Firstly, we've obtained the topological classification of above--mentioned functions in some neighborhood of their critical points. Secondly, we've constructed a chord diagram from the neighborhood of a critical level. Also the minimum number of critical points of such functions is being considered. And finally, the criterion of global topological equivalence of functions which belong to the $\\Omega(M)$ and have three critical points has been developed.", "revisions": [ { "version": "v1", "updated": "2017-06-15T19:13:13.000Z" } ], "analyses": { "subjects": [ "57R45", "57R70" ], "keywords": [ "isolated critical points", "compact surface", "paper focuses", "neighborhood", "chord diagram" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }