## Abstract It has been communicated by P. Manca in this journal that all 4โregular connected planar graphs can be generated from the graph of the octahedron using simple planar graph operations. We point out an error in the generating procedure and correct it by including an additional operation.
The genus of the n-octahedron: Regular cases
โ Scribed by Mark Jungerman; Gerhard Ringel
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 284 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
The nโoctahedron O~n~, also denoted K(2,2, โฆ, 2) or K~n(2)~, is the complete nโpartite graph with two vertices in each partite set. The formula
for the (orientable) genus of O~n~ is conjectured for all n and proved for n โ (mof 3). Triangular embeddigns are possible precisely when n โ 2 (mod 3), and the formula is established by exhibiting such embeddings.
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