论文标题
$ k_9 $的非双皮亚性的简短证明
A short proof of the non-biplanarity of $K_9$
论文作者
论文摘要
Battle，Harary和Kodama（1962）和Tutte（1963）证明，带有九个顶点的完整图不是Biplanar。为了实现简单和简洁，在本说明中，我们提供了这一主张的简短证明。
Battle, Harary, and Kodama (1962) and independently Tutte (1963) proved that the complete graph with nine vertices is not biplanar. Aiming towards simplicity and brevity, in this note we provide a short proof of this claim.
