PlanetMath: null graph

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null graph

(Definition)

The null graph is the graph with no vertices or edges. The null graph is the initial object in the category of graphs.

Further Reading

Harary, F. and Read, R. ``Is the null-graph a pointless concept?'', Lecture Notes in Mathematics 406 (1974), pp. 37-44.

"null graph" is owned by mathcam. [ full author list (2) | owner history (1) ]

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Other names:

empty graph

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Cross-references: category of graphs, initial object, edges, vertices, graph
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This is version 8 of null graph, born on 2002-06-24, modified 2005-06-29.
Object id is 3131, canonical name is NullGraph.
Accessed 4129 times total.

Classification:

05C99 (Combinatorics :: Graph theory :: Miscellaneous)

Pending Errata and Addenda

None.[ View all 7 ]

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