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On the Combinatorial Power of the Weisfeiler-Lehman Algorithm
[article]
2017
arXiv
pre-print
The classical Weisfeiler-Lehman method WL[2] uses edge colors to produce a powerful graph invariant. It is at least as powerful in its ability to distinguish non-isomorphic graphs as the most prominent algebraic graph invariants. It determines not only the spectrum of a graph, and the angles between standard basis vectors and the eigenspaces, but even the angles between projections of standard basis vectors into the eigenspaces. Here, we investigate the combinatorial power of WL[2]. For
arXiv:1704.01023v1
fatcat:g2j4vvuccvejdd6bu3xawb6csm