{ "id": "2405.09027", "version": "v1", "published": "2024-05-15T01:48:08.000Z", "updated": "2024-05-15T01:48:08.000Z", "title": "Csikvári's poset and Tutte polynomial", "authors": [ "Changxin Ding" ], "categories": [ "math.CO" ], "abstract": "Csikv\\'{a}ri constructed a poset on trees to prove that several graph functions attain extreme values at the star and the path among the trees on a fixed number of vertices. Reiner and Smith proved that the Tutte polynomials $T(1,y)$ of cones over trees, which are the graphs obtained by attaching a cone vertex to a tree, have the described extreme behavior. They further conjectured that the result can be strengthened in terms of Csikv\\'{a}ri's poset. We solve this conjecture affirmatively.", "revisions": [ { "version": "v1", "updated": "2024-05-15T01:48:08.000Z" } ], "analyses": { "keywords": [ "tutte polynomial", "csikváris poset", "graph functions attain extreme values", "cone vertex" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }