【摘要】 当n是奇数时,W_n表示n阶轮相间地去掉（n-1）/2条幅所得到的图,利用图的色多项式等价性的关系,证明了W₉是色唯一的。更多还原

【Abstract】 Wn represent n order profile diagram getting rid of (n - 1l)/2 bar alternate-graph if n is odd number. It was proved that W9 is uniquely colorable graph utilizing the equivalent relation of chromatic polynomial.更多还原