摘要
This paper provides the complete proof of the fact that any planar cubic graph isat most slngle-bend embeddable except for the tetrabedrou. An O(n) amortized time algorithm for drawing an at most single-bend embedding of a cubic graph'.is also presented, where n is the number of vertices of the graph. Furthermore, it is proved that the minimum of the total number of bends in an at most slngle-bend embedding of a cubic graph of order n is less than or equal to 0.5n+1. This result is the best possible.