{ "id": "1601.08199", "version": "v1", "published": "2016-01-29T17:19:09.000Z", "updated": "2016-01-29T17:19:09.000Z", "title": "Degree bounds for the toric ideal of a matroid", "authors": [ "Michał Lasoń" ], "categories": [ "math.CO", "math.AC", "math.AG" ], "abstract": "Describing minimal generating set of a toric ideal, or the minimum degree in which it is generated, is a well-studied and difficult problem. In 1980 White conjectured that the toric ideal of a matroid is generated by quadratic binomials corresponding to symmetric exchanges. In particular, that it is generated in degree $2$. We prove that the toric ideal associated to a matroid of rank $r$ is generated in degree at most $(r+3)!$. As a corollary we obtain that checking if White's conjecture is true for matroids of a fixed rank is a decidable problem.", "revisions": [ { "version": "v1", "updated": "2016-01-29T17:19:09.000Z" } ], "analyses": { "subjects": [ "05B35", "13P10", "14M25", "90C27" ], "keywords": [ "toric ideal", "degree bounds", "whites conjecture", "minimal generating set", "symmetric exchanges" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }