Definition:Edge of Graph/Notation

Edge of Graph: Notation

If $e \in E$ is an edge joining the vertex $u$ to the vertex $v$, it is denoted $u v$.

If $G$ is an undirected graph, an edge $u v$ can equivalently be denoted $v u$.

Sources

• 1977: Gary Chartrand: Introductory Graph Theory ... (previous) ... (next): Chapter $1$: Mathematical Models: $\S 1.3$: Graphs