Pullman [3] conjectured that if k is an odd positive integer, then every orientation of a regular graph of degree k has a minimum decomposition which contains no vertex which is both the initial vertex of some path in the decomposition and the terminal vertex of some other path in the decomposition
Even polyhedral decompositions of cubic graphs
✍ Scribed by M. Preissmann
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 136 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
✦ Synopsis
An even polyhedral decomposition of a finite cubic grap;'i G is defined a-, a sel of elem,:nlar~ cycles of even length ir~ G with the property that each edge of G lies in exactly two of them. l~" G has chromatic index three, then G has an e~en !polyhedral decomposition. We ~d~ow ~hat. contrary to a theorem of Szekeres . this property (m have an even p¢~lyhcdra! decompo~iliom doesn't characterize the cubic graphs of cttromatic inde~ three. In particuizm there exit,Is mq infinite family of sharks all having an even polyhedJal decomposiiion.
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