论文标题
强大的hanani-tutte
Strong Hanani-Tutte for the Torus
论文作者
论文摘要
如果可以在圆环上绘制图形,以使每两个独立的边缘跨越偶数次,则该图可以嵌入在圆环上。
If a graph can be drawn on the torus so that every two independent edges cross an even number of times, then the graph can be embedded on the torus.