Undirected (symmetric) | Directed/digraph (asymmetric) | Mixed |
---|---|---|
Simple | Multigraph |
---|---|
Undirected, unweighted graph that has no loops and no more than one edge between any two different vertices | Multiple edges connecting the same two vertices within a simple graph |
A graph may also have a connected component
Connected | Disconnected |
---|---|
If there is for any two given vertices a path between them | If not all pairs of vertices have a path between them |