Are small hyperbolic universes observationally detectable?
Are small hyperbolic universes observationally detectable?
Using recent observational constraints on cosmological density parameters, together with recent mathematical results concerning small volume hyperbolic manifolds, we argue that, by employing pattern repetitions, the topology of nearly flat small hyperbolic universes can be observationally undetectable. This is important in view of the fact that quantum cosmology may favour …