vertex number

The vertex count of a graph g, commonly denoted V(g) or left bracketing bar g right bracketing bar , is the number of vertices in g. In other words, it is the cardinality of the vertex set. The vertex count of a graph is implemented in the Wolfram Language as VertexCount[g]. The numbers of vertices for many named graphs are given by the command GraphData[graph, VertexCount].

edge count | graph vertex | vertex set