A proper edge coloring of a graph is called an adjacent strong edge coloring if no two of its adjacent vertices are incident with edges colored by the same set of colors.
如果在一个图的正常边着色中，相邻两点关联的边集所着的颜色集合不同，则称此正常边着色为相邻强边着色。
A proper edge coloring of a graph is called an adjacent strong edge coloring if no two of its adjacent vertices are incident with edges colored by the same set of colors.
如果在一个图的正常边着色中，相邻两点关联的边集所着的颜色集合不同，则称此正常边着色为相邻强边着色。
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