吉林大学学报(理学版) ›› 2024, Vol. 62 ›› Issue (3): 497-502.

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单圈图的邻点全和可区别全染色

李志军, 文飞   

  1. 兰州交通大学 应用数学研究所, 兰州 730070
  • 收稿日期:2023-08-28 出版日期:2024-05-26 发布日期:2024-05-26
  • 通讯作者: 文飞 E-mail:wenfei@lzjtu.edu.cn

Neighbor Full Sum Distinguishing Total Coloring of  Unicyclic Graph

LI Zhijun, WEN Fei   

  1. Institute of Applied Mathematics, Lanzhou Jiaotong University, Lanzhou 730070, China
  • Received:2023-08-28 Online:2024-05-26 Published:2024-05-26

摘要: 用结构分析法完整刻画单圈图U的邻点全和可区别全染色, 并得到当U=Cn且n=0(mod 3)时, ftndiΣ(U)=Δ(U)+2; 其他情况下, ftndiΣ(U)=Δ(U)+1. 表明邻点全和可区别全染色猜想在任意单圈图上都成立.

关键词: 单圈图, 正常全染色, 邻点全和可区别全染色, 邻点全和可区别全色数

Abstract: By using structural analysis method, we completely characterized the neighbor full sum distinguishing total coloring of unicyclic graph U, and obtained that ftndiΣ(U)=Δ(U)+2 when U=Cn and n=0(mod 3),  ftndiΣ(U)=Δ(U)+1 in other cases. This result  shows that the neighbor full sum distinguishing total coloring conjecture  holds on any unicyclic graph.

Key words: unicyclic graph, proper total coloring,  , neighbor full sum distinguishing total coloring, neighbor full sum distinguishing total chromatic number

中图分类号: 

  • O157.5