A labeled graph is a finite series of Vertices with a set of Edges of 2-Subsets of . Given a Vertex set , 2, ..., , the number of labeled graphs is given by . Two graphs and with Vertices are said to be Isomorphic if there is a Permutation of such that is in the set of Edges Iff is in the set of Edges .
See also Connected Graph, Graceful Graph, Graph (Graph Theory), Harmonious Graph, Magic Graph, Taylor's Condition, Weighted Tree
References
Cahit, I. ``Homepage for the Graph Labelling Problems and New Results.''
http://193.140.42.134/~cahit/CORDIAL.html.
Gallian, J. A. ``Graph Labelling.'' Elec. J. Combin. DS6, 1-43, Mar. 5, 1998.
http://www.combinatorics.org/Surveys/.