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Résumé |
We know the average spatial curvature of the universe is very small, but that
is just simplest aspect of its large-scale shape. What is the topology of the universe?
So far our searches for topology have yielded only limits. But when the search space is multi-dimensional,
and the searches are specialized, how constraining are they? Meanwhile there are
tantalizing hints in the large-angle anomalies of the cosmic microwave background
that they may be signs of non-trivial cosmic topology. We will discuss. |
