Definition: A graph whose edges are unordered pairs of vertices, and the same pair of vertices can be connected by multiple edges.
Formal Definition: Same as graph, but E is a bag of edges, not a set.
Generalization (I am a kind of ...)
Aggregate parent (I am a part of or used in ...)
See also hypergraph.
Note: A definition of "pseudograph" is a multigraph that may have self-loops.
If you have suggestions, corrections, or comments, please get in touch with Paul Black.
Entry modified 2 February 2006.
HTML page formatted Tue Feb 12 10:57:43 2019.
Cite this as:
Paul E. Black, "multigraph", in Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 2 February 2006. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/multigraph.html