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The number of Hamiltonian circuits in large, heavily edged graphs

Published online by Cambridge University Press:  18 May 2009

J. Sheehan
Affiliation:
University of Aberdeen, Aberdeen, U.K.
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G is a graph on n nodes with q edges, without loops or multiple edges. We write α = q/n and β for the maximum degree of any node of G. We write

and H for the number of Hamiltonian circuits (H.c.) in the complement of G, or, what is the same thing, the number of those H.c. in the complete graph Kn which have no edge in common with G. Our object here is to prove the following theorem.

Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 1977

References

REFERENCES

1.Kasai, T., Shintani, H. and Imai, M., Number of Hamiltonian circuits in basic series of incomplete graphs, Bull. Univ. Osaka Prefecture Ser. A 20 (1971), No. 2, 245260. MR 46, No. 8908.Google Scholar
2.Rousseau, C. C., An enumeration problem concerning Hamiltonian cycles, Report 73–18, Department of Mathematics, Memphis State University.Google Scholar
3.Singmaster, D., oral communication.Google Scholar
4.Wright, E. M., For how many edges is a graph almost certainly Hamiltonian?, J. London Math. Soc. (2) 8 (1974), 4448.CrossRefGoogle Scholar