Platonic graph

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Short description: Graph with a Platonic solid as its skeleton

In the mathematical field of graph theory, a Platonic graph is a graph that has one of the Platonic solids as its skeleton. There are 5 Platonic graphs, and all of them are regular, polyhedral (and therefore by necessity also 3-vertex-connected, vertex-transitive, edge-transitive and planar graphs), and also Hamiltonian graphs.[1]

  • Tetrahedral graph – 4 vertices, 6 edges
  • Octahedral graph – 6 vertices, 12 edges
  • Cubical graph – 8 vertices, 12 edges
  • Icosahedral graph – 12 vertices, 30 edges
  • Dodecahedral graph – 20 vertices, 30 edges
Orthogonal projections of platonic solids
3-simplex graph.svg 3-cube t2.svg 3-cube column graph.svg Icosahedron A2 projection.svg Dodecahedral graph.neato.svg

See also

References

  1. Read, R. C. and Wilson, R. J. An Atlas of Graphs, Oxford, England: Oxford University Press, 2004 reprint, Chapter 6 special graphs pp. 261, 266.

External links