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A note on defect groups

✍ Scribed by Andres Galvan


Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
207 KB
Volume
88
Category
Article
ISSN
0021-8693

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## Abstract We study a concept of group coloring introduced by Jaeger et al. We show that the group chromatic number of a graph with minimum degree Ξ΄ is greater than Ξ΄/(2, ln Ξ΄) and we answer several open questions on the group chromatic number of planar graphs: a construction of a bipartite planar