Citations:antipodicity


 * 2010 B. Mota et al, "Circles-in-the-sky searches and observable cosmic topology in a flat Universe" arXiv
 * We show that for all multiply-connected orientable flat manifolds it is possible to directly study the action of the holonomies in order to obtain an upper bound on the angle that characterizes the deviation from antipodicity of pairs of matching circles associated with the shortest closed geodesic.