{ "id": "2405.18162", "version": "v1", "published": "2024-05-28T13:24:07.000Z", "updated": "2024-05-28T13:24:07.000Z", "title": "A note on locating sets in twin-free graphs", "authors": [ "Nicolas Bousquet", "Quentin Chuet", "Victor Falgas-Ravry", "Amaury Jacques", "Laure Morelle" ], "comment": "5 pages, 1 figure", "categories": [ "math.CO" ], "abstract": "In this short note, we prove that every twin-free graph on $n$ vertices contains a locating-dominating set of size at most $\\lceil\\frac{5}{8}n\\rceil$. This improves the earlier bound of $\\lfloor\\frac{2}{3}n\\rfloor$ due to Foucaud, Henning, L\\\"owenstein and Sasse from 2016, and makes some progress towards the well-studied locating-dominating conjecture of Garijo, Gonz\\'alez and M\\'arquez.", "revisions": [ { "version": "v1", "updated": "2024-05-28T13:24:07.000Z" } ], "analyses": { "subjects": [ "05C69", "G.2.2", "F.2.2" ], "keywords": [ "twin-free graph", "locating sets", "short note", "vertices contains", "earlier bound" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }