高度图的全色数
Total Chromatic Number of Graphs of High Degree
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摘要: 证明了:如果图G的最大度顶点数r(G)满足r(G)≤|V(G)|-Δ(G)-1,且δ(G)+2Δ(G)≥(5)/(2)|V(G)|+(3. 则G的全色数xT(G)=Δ(G)+1.Abstract: It is proved that if the number r(G) of vertices with maximum degree Δ(G) in a graph G satisfies r(G)≤|V(G)|-Δ(G)- 1 and δ(G)+2Δ(G)≥(5)/(2)|V(G)|+(3)/(2), t hen xT(G)=δ(g)+1.
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Key words:
- total colouring /
- total chromatic number /
- total chromatic number conjecture /
- graph of type 1. .
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