讨论了非连通图C4m-1∪C12m-8 ∪G的优美性,证明了当m为任意正整数,G是特征为k且缺k+6m-3标号值的交错图(6m-3≤k+6m-3≤| E(G)|)时,非连通图C4m-1∪ C12m-8∪G存在缺标号值k+1的优美标号,其中,G是具有m个顶点的圈.
The gracefulness of the unconnected graph C4m-1 ∪C12m-8 ∪G is discussed. It is proved thatfor any positive integer m, when G is alternating graph (6m - 3≤ k + 6m - 3 ≤| E(G) | ) thatcharacterized by k and lack of label values of k+6m-3, the unconnected graph C4m-1 UC12m-8 UG hasgraceful labeling which lack of lable values of k+1, wherein, Cm is a cycle with m vertices.