There are 22 graphs with 13 vertices which can be embedded
on the torus and whose complements can also be embedded on the torus.
There are 18 graphs with 13 vertices which can be embedded on the torus and
whose complements can be embedded on the Klein bottle.
There are no graphs with 13 vertices which can be embedded on the Klein bottle
and whose complement can also be embedded on the Klein bottle.
Here is a draft of these results.
Last updated: 2 April 2005
URL: https://tsulanke.pages.iu.edu/graphs/biembed/index.html
Created by Thom Sulanke ()