Simply connected space | Emergence: The Connected Lives of Ants, Brains, Cities, and Software | connected | Sportsnet Connected | Connected farm | Connected-component labeling | connected component (graph theory) | Connected: An Autoblogography About Love, Death & Technology |
This case is potentially physically interesting in the case that the shape of the universe is a multiply connected 3-manifold, since finding the angles of the eigenrotations of a candidate isometry for topological lensing is a way to falsify such hypotheses.