{ "id": "2310.18971", "version": "v1", "published": "2023-10-29T10:34:20.000Z", "updated": "2023-10-29T10:34:20.000Z", "title": "Structures of $R(f)-\\overline{P(f)}$ for graph maps $f$", "authors": [ "Jiehua Mai", "Enhui Shi", "Kesong Yan", "Fanping Zeng" ], "categories": [ "math.DS" ], "abstract": "Let $G$ be a graph and $f: G\\rightarrow G$ be a continuous map. We establish a structure theorem which describes the structures of the set $R(f)-\\overline{P(f)}$, where $R(f)$ and $P(f)$ are the recurrent point set and the periodic point set of $f$ respectively. Roughly speaking, the set $R(f)-\\overline{P(f)}$ is covered by finitely many pairwise disjoint $f$-invariant open sets $U_{1\\,},\\,\\cdots,\\,U_{n\\,}$; each $U_i$ contains a unique minimal set $W_i$ which absorbs each point of $U_i$; each $W_i$ lies in finitely many pairwise disjoint circles each of which is contained in a connected closed set; all of these connected closed sets are contained in $U_i$ and permutated cyclically by $f$. As applications of the structure theorem, several known results are improved or reproved.", "revisions": [ { "version": "v1", "updated": "2023-10-29T10:34:20.000Z" } ], "analyses": { "subjects": [ "37E25", "37B20", "37C25", "54H20" ], "keywords": [ "graph maps", "structure theorem", "connected closed set", "unique minimal set", "periodic point set" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }