{ "id": "1506.03442", "version": "v1", "published": "2015-06-10T19:57:28.000Z", "updated": "2015-06-10T19:57:28.000Z", "title": "On global location-domination in bipartite graphs", "authors": [ "Carmen Hernando", "Merce Mora", "Ignacio M. Pelayo" ], "comment": "13 pages, 7 figures. arXiv admin note: text overlap with arXiv:1312.0772", "categories": [ "math.CO" ], "abstract": "A dominating set $S$ of a graph $G$ is called locating-dominating, LD-set for short, if every vertex $v$ not in $S$ is uniquely determined by the set of neighbors of $v$ belonging to $S$. Locating-dominating sets of minimum cardinality are called $LD$-codes and the cardinality of an LD-code is the \\emph{location-domination number} $\\lambda(G)$. An LD-set $S$ of a graph $G$ is \\emph{global} if it is an LD-set of both $G$ and its complement $\\overline{G}$. The \\emph{global location-domination number} $\\lambda_g(G)$ is the minimum cardinality of a global LD-set of $G$. For any LD-set $S$ of a given graph $G$, the so-called \\emph{S-associated graph} $G^S$ is introduced. This edge-labeled bipartite graph turns out to be very helpful to approach the study of LD-sets in graphs, particularly when $G$ is bipartite. This paper is mainly devoted to the study of relationships between global LD-sets, LD-codes and the location-domination number in a graph $G$ and its complement $\\overline{G}$, when $G$ is bipartite.", "revisions": [ { "version": "v1", "updated": "2015-06-10T19:57:28.000Z" } ], "analyses": { "subjects": [ "05C69" ], "keywords": [ "global location-domination", "minimum cardinality", "location-domination number", "global ld-set", "edge-labeled bipartite graph turns" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150603442H" } } }