{ "id": "1609.03049", "version": "v1", "published": "2016-09-10T13:19:35.000Z", "updated": "2016-09-10T13:19:35.000Z", "title": "The excluded minors for the class of matroids that are graphic or bicircular lift", "authors": [ "Rong Chen" ], "categories": [ "math.CO" ], "abstract": "Bicircular lift matroids are a class of matroids defined on the edge set of a graph. For a given graph $G$, the circuits of its bicircular lift matroid $L(G)$ are the edge sets of those subgraphs of $G$ that contain at least two cycles, and are minimal with respect to this property. For each cycle $C$ of $G$, since $L(G)/C$ is graphic and most graphic matroids are not bicircular lift, the class of bicircular lift matroids is not minor-closed. In this paper, we prove that the class of matroids that are graphic or bicircular lift has a finite list of excluded minors.", "revisions": [ { "version": "v1", "updated": "2016-09-10T13:19:35.000Z" } ], "analyses": { "keywords": [ "excluded minors", "bicircular lift matroid", "edge set", "graphic matroids", "finite list" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }