Tag Archives: functor

Topological Group Reflections: turning a group with topology into a topological group, Part II

In Part I, we discussed the operation , which takes in a group equipped with a topology (that does not necessarily interact nicely with the operations of the group) and outputs a topological group. The underlying group of is the … Continue reading

Posted in Categorical Topology, Category Theory, General topology, quasitopological groups, quotient topology, reflection functor, Topological groups, Uncategorized | Tagged , , , , , , , | 3 Comments

The locally path-connected coreflection (Part I)

Say you’ve got some path-connected space and you want to know about it’s fundamental group . But isn’t locally path-connected so pretty much any standard tools in algebraic topology aren’t going to help you out. What’s an algebraic topologist to … Continue reading

Posted in Algebraic Topology, Category Theory, General topology | Tagged , , , , , , , | 15 Comments