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检索条件"主题词=discharging method"
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Neighbor Sum Distinguishing Total Choosability of Planar Graphs with Maximum Degree at Least 10
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Acta Mathematicae Applicatae Sinica 2024年 第1期40卷 211-224页
作者: Dong-han Zhang You Lu Sheng-gui Zhang Li Zhang School of Mathematics and Statistics Northwestern Polytechnical UniversityXi’an710129China School of Mathematics and Computer Application Shangluo UniversityShangluo726000China
A neighbor sum distinguishing(NSD)total coloringφof G is a proper total coloring of G such thatΣz∈EG(u)U{u}φ(z)≠Σz∈EG(v)U{v}φ(z)for each edge uv∈E(G),where EG(u)is the set of edges incident with a vertex u.In... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Total-coloring of Sparse Graphs with Maximum Degree 6
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Acta Mathematicae Applicatae Sinica 2021年 第4期37卷 738-746页
作者: Yu-lin CHANG Fei JING Guang-hui WANG Ji-chang WU School of Mathematics Shandong UniversityJinan250100China
Given a graph G=(V,E)and a positive integer k,a k-total-coloring of G is a mappingφ:V⋃E→{1,2,⋯,k}such that no two adjacent or incident elements receive the same color.The central problem of the total-colorings is th... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
On Total Colorings of Some Special 1-planar Graphs
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Acta Mathematicae Applicatae Sinica 2017年 第3期33卷 607-618页
作者: Lin SUN Jian-liang WU Hua CAI Department of Mathematics Changji University School of Mathematics Shandong University
A graph is 1-planar if it can be drawn on the plane so that each edge is crossed by at most one other edge. In this paper, we verify the total coloring conjecture for every 1-planar graph G if either △(G) ≥9 and g... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
A Totally(Δ+1)-colorable 1-planar Graph with Girth at Least Five
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Acta Mathematica Sinica,English Series 2016年 第11期32卷 1337-1349页
作者: Lin SUN Jian Liang WU Hua CAI School of Mathematics Shandong University Ji'nan 250100 P. R. China Department of Mathematics Changji University Changji 831100 P. R. China
A graph is 1-planar if it can be drawn on the plane so that each edge is crossed by at most one other edge. In this paper, we prove that every 1-planar graph G with maximum degree △(G) 〉 12 and girth at least five... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论