Strong Hanani-Tutte for the Torus
arXiv:2009.01683
Abstract
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.
minor corrections
arXiv:2009.01683
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.
minor corrections