论文标题
$ C_3 \ Times C_3 $的最大交叉数
The maximum crossing number of $C_3 \times C_3$
论文作者
论文摘要
我们确定$ C_3 \ times C_3 $的最大交叉数为78，它关闭了以前最著名的68至80之间的范围。证明使用了几种技术，这些技术可能在确定其他图的最大交叉数中很有用。
We determine that the maximum crossing number of $C_3 \times C_3$ is 78, which closes the previously best known range of between 68 and 80. The proof uses several techniques which may be useful in determining the maximum crossing number of other graphs.
