{ "id": "1404.5192", "version": "v1", "published": "2014-04-21T13:47:34.000Z", "updated": "2014-04-21T13:47:34.000Z", "title": "On the power graph of a finite group", "authors": [ "Min Feng", "Xuanlong Ma", "Kaishun Wang" ], "categories": [ "math.CO", "math.GR" ], "abstract": "The power graph $\\mathcal P_G$ of a finite group $G$ is the graph with the vertex set $G$, where two elements are adjacent if one is a power of the other. We first show that $\\mathcal P_G$ has an transitive orientation, so it is a perfect graph and its core is a complete graph. Then we use the poset on all cyclic subgroups (under usual inclusion) to characterise the structure of $\\mathcal P_G$. Finally, the closed formula for the metric dimension of $\\mathcal P_G$ is established. As an application, we compute the metric dimension of the power graph of a cyclic group.", "revisions": [ { "version": "v1", "updated": "2014-04-21T13:47:34.000Z" } ], "analyses": { "keywords": [ "power graph", "finite group", "metric dimension", "vertex set", "cyclic group" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1404.5192F" } } }