【摘要】 令K₄（i,j,k,l,m,n）表示两两三度点间的路长分别为i,j,k,l,m,n的K₄-同胚图.对6条路的长均大于1且有4条路的长相等其余两条路互不相等的K₄-同胚图的着色进行了研究,得到了一类色唯一的K₄-同胚图.更多还原

【Abstract】 let K₄（i,j,k,l,m,n）denote the K₄ homeomorph in which the lengths of its six paths between pairs of degree 3 vertices are i,j,k,l,m,n,respectively.In this paper,we study the chromaticity of a part of K₄（i,j,k,l,m,n）when i,j,k,l,m,n are all more than 1, and there are four paths whose lengths are equivalent,but other two paths whose lengths are not equal to each other,and obtained a family of chromatically unique K₄ homeomorphs.更多还原