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平面图的线性着色

Linear Coloring of Planar Graphs
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摘要 研究了平面图的线性着色.对平面图G,证明了lc(G)≤min{2Δ(G)+3,Δ(G)+15}和lc(G)≤max{└0.9Δ(G)┘+4,┌Δ(G)/2┐+22},改进了平面图线性着色色数的上界. The linear coloring of planar graphs is studied in this paper. For a planar graph G, it is proved thatlc(G)≤min{2△(G)+3, △(G)+15} andlc(G)≤max{ └0.9A(G) ┘ +4,└△(G)/2┘ +22}, thus improving the upper bounds on the linear chromatic number of planar graphs.
出处 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第2期99-102,共4页 Journal of Southwest University(Natural Science Edition)
基金 重庆市科委自然科学基金计划资助项目(CSTC 2007BB2123)
关键词 平面图 线性着色 线性色数 最大度 planar graph linear coloring linear chromatic number maximum degree
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