An Efficient Algorithm for Graph Isomorphism

@article{Corneil1970AnEA,
  title={An Efficient Algorithm for Graph Isomorphism},
  author={Derek G. Corneil and Calvin C. Gotlieb},
  journal={J. ACM},
  year={1970},
  volume={17},
  pages={51-64}
}
A procedure for determining whether two graphs are isomorphic is described. During the procedure, from any given graph two graphs, the representative graph and the reordered graph, are derived. The representative graph is a homomorphic image of the original graph; the reordered graph is constructed from the representative graph to be isomorphic to the given graph. Unique labels are assigned to the vertices of both derived graphs. It follows that two repre- sentative graphs or two reordered… 

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