{ "id": "1308.4341", "version": "v1", "published": "2013-08-20T16:09:51.000Z", "updated": "2013-08-20T16:09:51.000Z", "title": "Maxima of the Q-index: graphs without long paths", "authors": [ "Vladimir Nikiforov", "Xiying Yuan" ], "comment": "10 pages", "categories": [ "math.CO" ], "abstract": "This paper gives tight upper bound on the largest eigenvalue q(G) of the signless Laplacian of graphs with no paths of given order. The main ingredient of our proof is a stability result of its own interest, about graphs with large minimum degree and with no long paths. This result extends previous work of Ali and Staton.", "revisions": [ { "version": "v1", "updated": "2013-08-20T16:09:51.000Z" } ], "analyses": { "subjects": [ "05C50" ], "keywords": [ "long paths", "tight upper bound", "large minimum degree", "result extends", "main ingredient" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1308.4341N" } } }