Abstract
We construct face two-colourable triangulations of the graph 2 K n in an orientable surface; equivalently biembeddings of two twofold triple systems of order n , for all n ≡ 16 or 28 (mod 48) . The biembeddings come from index 1 current graphs lifted under a group Z n / 4 × K 4 .
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have