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Isomorphism Classes of Graph Bundles

Published online by Cambridge University Press:  20 November 2018

Jin Ho Kwak  and
Jaeun Lee
Jin Ho Kwak
Affiliation:
Mathematics, Pohang Institute of Science and Technology, Pohang, 790-600 Korea
Jaeun Lee
Affiliation:
Mathematics, Kyungpook National University, Taegu, 702-701 Korea
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Abstract

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Recently, M. Hofmeister [4] counted all nonisomorphic double coverings of a graph by using its Ζ2 cohomology groups, and J. Kwak and J. Lee [5] did the same work for some finite-fold coverings. In this paper, we give an algebraic characterization of isomorphic graph bundles, from which we get a formula to count all nonisomorphic graph-bundles. Some applications to wheels are also discussed.

Type
Research Article
Information
Canadian Journal of Mathematics , Volume 42 , Issue 4 , 01 August 1990 , pp. 747 - 761
Copyright
Copyright © Canadian Mathematical Society 1990

References

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