{ "id": "1006.2493", "version": "v1", "published": "2010-06-12T21:25:05.000Z", "updated": "2010-06-12T21:25:05.000Z", "title": "Diameter Bounds for Planar Graphs", "authors": [ "Radoslav Fulek", "Filip Morić", "David Pritchard" ], "categories": [ "math.CO" ], "abstract": "The inverse degree of a graph is the sum of the reciprocals of the degrees of its vertices. We prove that in any connected planar graph, the diameter is at most 5/2 times the inverse degree, and that this ratio is tight. To develop a crucial surgery method, we begin by proving the simpler related upper bounds (4(V-1)-E)/3 and 4V^2/3E on the diameter (for connected planar graphs), which are also tight.", "revisions": [ { "version": "v1", "updated": "2010-06-12T21:25:05.000Z" } ], "analyses": { "keywords": [ "diameter bounds", "connected planar graph", "inverse degree", "crucial surgery method", "simpler related upper bounds" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1006.2493F" } } }