16 Answers votes newest views recent 0a free topological group as a topological module 2Is the wedge sum of two cones over the hawaiian earring contractible? 6Universal covering space for non-semilocally simply connected spaces 2Fundamental groups and homology groups of closed subsets of the plane 6when is a locally homeo a covering map? 2Mathematical ideas named after places 1Looking for general approaches to show connectedness of topological groups 1Normal subgroups of braid groups 13Is a space with no covering spaces simply connected? 1Topological vs pro fundamental groups 7Fundamental group of R^2 minus the (ir)rationals 11Does $\pi_1$ have a right adjoint? 3Applications of compactness 24Fundamental group as topological group 1What is known about module categories over general monoidal categories? 6What is an example of a non-regular, totally path-disconnected Hausdorff space?