Tight Lower and Upper Bounds for the Complexity of Canonical Colour Refinement
european symposium on algorithms, Volume 60, Issue 4, 2017, Pages 581-614.
Graph isomorphismColour refinementPartition refinementCanonical labelling
An assignment of colours to the vertices of a graph is stable if any two vertices of the same colour have identically coloured neighbourhoods. The goal of colour refinement is to find a stable colouring that uses a minimum number of colours. This is a widely used subroutine for graph isomorphism testing algorithms, since any automorphism ...More
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