Chromatically Equivalent Graphs with P(G, λ) = (λ- λ_1)(λ-λ_2)λ￣(n+1)
色多项式为P（G，λ）＝（λ－λ_1）（λ－λ_2）λ^（n＋1）的色等价图
摘要
The author finds out all of the graphs with the same chromatic polynomial and proves some relevant theorems and corollaries.
找出了所有色多项式为（λ－λ１）（λ－λ２）λ（ｎ＋１）的色等价图，并证明了一些相关的定理和推论．
参考文献2
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