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Enumeration Of Labelled Graphs

Published online by Cambridge University Press:  20 November 2018

E. N. Gilbert
E. N. Gilbert*
Affiliation:
Bell Telephone Laboratories, Murray Hill, NJ.
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1. Introduction. The number of connected linear graphs having V vertices labelled 1, … , V and λ (unlabelled) lines is found below. Similar formulas are found for graphs in which slings, lines “in parallel,” or both are allowed and for directed graphs with or without slings or parallel lines. Some of these graphs are also counted when the lines are labelled and the vertices are unlabelled.

Type
Research Article
Information
Canadian Journal of Mathematics , Volume 8 , 1956 , pp. 405 - 411
Copyright
Copyright © Canadian Mathematical Society 1956

References

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