New posts in Topological Groups

The orbit space $\dfrac{\mathbb{R}^n}{\mathbb{R}^+}$ has an open subset homeomorphic to $S^{n-1}$

Sharply $k$-transitive actions on spheres

A connected group which is disconnected

When is convolution not commutative?

Proving a map in a commutative diagram is continuous.

Is a normal subgroup normal in a normal group?

If you equip two isomorphic groups with homeomorphic topologies, are they isomorphic as topological groups?

Simple Failings of Axiom of Choice in Top

embedding of abelian topological group.

What's the smallest difference in a group?