Definition:Loop-Graph/Loop-Multigraph

Definition
A loop-multigraph is a multigraph which is allowed to have loops:


 * LoopMultigraph.png

Also known as
Some presentations of this subject omit the hyphen and call this a loop multigraph.

A loop-multigraph is also often known as a pseudograph.

However, the precise definition of the latter term varies in the literature, and its precise meaning can be misunderstood. Its use is therefore not recommended.