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Vertex coloring edge-weighting of some wheel related of graphs

机译:顶点着色边缘加权,一些轮子相关的轮子

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Let G=(V, E) be a connected, undirected and simple graph. For k ∈ N, let w : E(G) → {1, 2, ···, k} be an integer edge-weighting of a graph G. An edge-weighting w induces a vertex coloring f_w : V(G) → N defined by f_w(v) = Σ_(v∈e) w(e). An edge-weighting is called vertex coloring if f_w(u) ≠ f_w(v) for any edge uv, denoted by μ(G). The minimum k for which G has a vertex-coloring k-edge-weighting. In this paper, our results include lower bound of vertex coloring edge weighting of G + K_1 and the exact value of vertex coloring edge-weighting of some wheel related graphs include fan, friendship, wheel, helm, flower, sun folwer, and closed helm graph.
机译:设G =(v,e)是连接的,无向和简单的图形。对于K∈N,设有W:e(g)→{1,2,...,k}是图G的整数边缘加权。边缘加权w引起顶点着色f_w:v(g) →N由F_W(V)=Σ_(v∈e)w(e)定义。在任何边缘UV的F_W(u)≠f_w(v)表示由μ(g)表示的f_w(u)≠f_w(v)称为顶点加权。 G的最小k具有顶点着色K-Edge加权。在本文中,我们的结果包括G + K_1的顶点着色边缘加权的下限,并且一些车轮的顶点着色边缘加权的精确值包括风扇,友谊,轮子,掌舵,花卉,太阳窗口和封闭的掌舵图形。

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