Geodesic
Isomorphic tetravalent cyclic Haar graphs
Ars Mathematica Contemporanea, Tome 7 (2014) no. 1, pp. 215-235.

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Let S be a subset of the cyclic group Zn. The cyclic Haar graph H(Zn, S) is the bipartite graph with color classes Zn + and Zn − , and edges {x + , y − }, where x, y ∈ Zn and y − x ∈ S. In this paper we give sufficient and necessary conditions for the isomorphism of two connected cyclic Haar graphs of valency 4.
DOI : 10.26493/1855-3974.302.472
Keywords: Graph isomorphism, cyclic Haar graph, 4-BCI-group 
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Hiroki Koike; István Kovács. Isomorphic tetravalent cyclic Haar graphs. Ars Mathematica Contemporanea, Tome 7 (2014) no. 1, pp. 215-235. doi : 10.26493/1855-3974.302.472. http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.302.472/

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