A 27-Vertex Graph That Is Vertex-Transitive and Edge-Transitive But Not 1-Transitive [PDF]
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|A paper describing a 27-vertex graph that is vertex-transitive and edge-transitive but not 1-transitive. While all vertices and edges of the graph are similar, there are no edge-reversing automorphisms. PostScript, source, and PDF picture are available from Doyle's site.|
|Math Topics:||Modern Algebra, Graph Theory, Algebraic Geometry|
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