A convex characterization of the graphs of the dodecahedron and icosahedron
β Scribed by Patricia Vanden Cruyce
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 378 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
Let r be a 3-polytopal graph such that every face of r is convex. We prove that if the set of proper convex subgraphs of r is equal to the set of proper convex subgraphs of the dodecahedron (resp. icosahedron), then F is isomorphic to the dodecahedron (resp. icosahedron).
π SIMILAR VOLUMES
We show that if G is a connected graph with the same proper convex subgraphs as (Kn)', the Cartesian product of r copies of Kn, r >t 2, n >t 3, then [V(G)I ~> n" with equality if and only if G is isomorphic to (Kn)'. In this note we consider only connected finite undirected simple graphs. The compl
It is shown that if three vertices of the graph c?(l)) of a convex 3-polytope P are chosen, then G(P) contains a refinement of the complete graph C,, on four vertices, for which the three chosen vertices are principal (that is, correspond to vertices of C, in the refinement.. In general, all four ve
In 1976, R.N