Proper vertex-pancyclicity of edge-colored complete graphs without monochromatic triangles
Proper vertex-pancyclicity of edge-colored complete graphs without monochromatic triangles
复制标题
无单色三角形的边色完全图的正确顶点全循环性
DOI:
10.1016/j.dam.2019.03.011
复制
发表时间:
2019
影响因子:
1.1
通讯作者:
Yuan Jinjiang
中科院分区:
文献类型:
--
作者:
Chen Xiaozheng;Huang Fei;Yuan Jinjiang
In an edge-colored graph (G, c), let d c (v) be the number of colors on the edges incident to vertex v and let δ c (G) be the minimum value of d c (v) over all vertices v∈ V (G). A cycle of (G, c) is called proper if any two adjacent edges of the cycle have distinct colors. An edge-colored graph (G, c) on n≥ 3 vertices is called properly vertex-pancyclic if each vertex of (G, c) is contained in a proper cycle of length l for every l with 3≤ l≤ n. Fujita and Magnant conjectured that every edge-colored complete graph on n≥ 3 vertices with δ c (G)≥ n+ 1 2 is properly vertex-pancyclic. We show that this conjecture is true if the edge-colored complete graph has no monochromatic triangles.