{ "id": "2203.10239", "version": "v1", "published": "2022-03-19T04:35:01.000Z", "updated": "2022-03-19T04:35:01.000Z", "title": "Plane Triangulations Without Spanning 2-Trees", "authors": [ "Allan Bickle" ], "comment": "9 pages", "categories": [ "math.CO" ], "abstract": "A 2-tree is a graph that can be formed by starting with a triangle and iterating the operation of making a new vertex adjacent to two adjacent vertices of the existing graph. Leizhen Cai asked in 1995 whether every maximal planar graph contains a spanning 2-tree. We answer this question in the negative by constructing an infinite class of maximal planar graphs that have no spanning 2-tree.", "revisions": [ { "version": "v1", "updated": "2022-03-19T04:35:01.000Z" } ], "analyses": { "subjects": [ "05C10" ], "keywords": [ "plane triangulations", "maximal planar graph contains", "leizhen cai", "adjacent vertices", "vertex adjacent" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }