The triakis icosahedral graph is an Archimedean dual graph which is the skeleton of the triakis icosahedron. It is implemented in the Wolfram Language as GraphData["TriakisIcosahedralGraph"].
The plots above show the adjacency matrix, incidence matrix, and graph distance matrix for the triakis icosahedral graph.
The following table summarizes some properties of the graph.
| property | value |
| automorphism group order | 120 |
| characteristic polynomial |  |
| chromatic number | 4 |
| chromatic polynomial | ? |
| claw-free | no |
| clique number | 4 |
| determined by spectrum | ? |
| diameter | 4 |
| distance-regular graph | no |
| dual graph name | truncated dodecahedral graph |
| edge chromatic number | 10 |
| edge connectivity | 3 |
| edge count | 90 |
| Eulerian | no |
| girth | 3 |
| Hamiltonian | no |
| Hamiltonian cycle count | 0 |
| Hamiltonian path count | 0 |
| integral graph | no |
| independence number | 20 |
| line graph | ? |
| perfect matching graph | no |
| planar | yes |
| polyhedral graph | yes |
| polyhedron embedding names | great dodecahedron, great stellated dodecahedron, spikey, triakis icosahedron |
| radius | 3 |
| regular | no |
| square-free | no |
| traceable | no |
| triangle-free | no |
| vertex connectivity | 3 |
| vertex count | 32 |
