{ "id": "1309.1835", "version": "v2", "published": "2013-09-07T08:15:32.000Z", "updated": "2013-09-22T19:25:03.000Z", "title": "Claw-freeness, 3-homogeneous subsets of a graph and a reconstruction problem", "authors": [ "Maurice Pouzet", "Hamza Si Kaddour", "Nicolas Trotignon" ], "comment": "This paper has no DOI, published version available at: http://cdm.ucalgary.ca/cdm/index.php/cdm/article/view/189", "journal": "Contributions to Discrete Mathematics, 6(1):92-103, 2011", "categories": [ "math.CO" ], "abstract": "We describe ${\\rm Forb}\\{K_{1,3}, \\bar {K_{1,3}}\\}$, the class of graphs $G$ such that $G$ and its complement $\\bar{G}$ are claw-free. With few exceptions, it is made of graphs whose connected components consist of cycles of length at least 4, paths, and of the complements of these graphs. Considering the hypergraph ${\\mathcal H}^{(3)}(G)$ made of the 3-element subsets of the vertex set of a graph $G$ on which $G$ induces a clique or an independent subset, we deduce from above a description of the Boolean sum $G\\dot{+}G'$ of two graphs $G$ and $G'$ giving the same hypergraph. We indicate the role of this latter description in a reconstruction problem of graphs up to complementation.", "revisions": [ { "version": "v2", "updated": "2013-09-22T19:25:03.000Z" } ], "analyses": { "subjects": [ "05C60" ], "keywords": [ "reconstruction problem", "claw-freeness", "connected components consist", "hypergraph", "vertex set" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1309.1835P" } } }