{ "id": "1103.3336", "version": "v1", "published": "2011-03-17T05:29:26.000Z", "updated": "2011-03-17T05:29:26.000Z", "title": "The Metric Dimension of Lexicographic Product of Graphs", "authors": [ "Mohsen Jannesari", "Behnaz Omoomi" ], "comment": "11 pages", "categories": [ "math.CO" ], "abstract": "For an ordered set $W=\\{w_1,w_2,...,w_k\\}$ of vertices and a vertex $v$ in a connected graph $G$, the ordered $k$-vector $r(v|W):=(d(v,w_1),d(v,w_2),...,d(v,w_k))$ is called the (metric) representation of $v$ with respect to $W$, where $d(x,y)$ is the distance between the vertices $x$ and $y$. The set $W$ is called a resolving set for $G$ if distinct vertices of $G$ have distinct representations with respect to $W$. The minimum cardinality of a resolving set for $G$ is its metric dimension. In this paper, we study the metric dimension of the lexicographic product of graphs $G$ and $H$, $G[H]$. First, we introduce a new parameter which is called adjacency metric dimension of a graph. Then, we obtain the metric dimension of $G[H]$ in terms of the order of $G$ and the adjacency metric dimension of $H$.", "revisions": [ { "version": "v1", "updated": "2011-03-17T05:29:26.000Z" } ], "analyses": { "keywords": [ "lexicographic product", "adjacency metric dimension", "resolving set", "distinct vertices", "distinct representations" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1103.3336J" } } }