Tiling the torus and other space forms (Q581420)

We consider graphs on two-dimensional space forms which are quotient graphs \(\Gamma\) /F, where \(\Gamma\) is an infinite, 3-connected, face, vertex, or edge transitive planar graph and F is a subgroup of Aut(\(\Gamma)\), all of whose elements act freely on \(\Gamma\). The enumeration of quotient graphs with transitivity properties reduces to computing the normalizers in Aut(\(\Gamma)\) of the subgroups F. Results include: all isogonal toroidal polyhedra belong to the two families found by Grünbaum and Shephard; there are no transitive graphs on the Möbius band; there is a graph on the Klein bottle whose automorphism group acts transitively on its faces, edges, and vertices.