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Edge coloring of graphs embedded in a surface of nonnegative characteristic |
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| Authors: | |
| Institution: | 1.School of Management,Beijing University of Chinese Medicine,Beijing,China |
| Abstract: | Let G be a graph embeddable in a surface of nonnegative characteristic with maximum degree six. In this paper, we prove that if G contains no a vertex v which is contained in all cycles of lengths from 3 to 6, then G is of Class 1. |
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