New posts in Group Actions

Isomorphism between the actions of $G$ on $G/H$ and $G/gHg^{-1}$?

Does $p \mid \frac{|{\rm{Stab}}(Q)|}{|\bigcap_{P\in {\rm{Syl}}_p(G)}{\rm{Stab}}(P)|}, \space\forall Q \in \operatorname{Syl}_p(G)$?

Matrix right multiplication orbit invariant

Coproduct in an alternative category of groups

Orbits of vectors under the action of $\mathrm{GL}_n(\mathbb Q)$

Transitive action of a discrete group on a compact space

Normalizer of group action

Does a topological space always admit a $\mathbb{Z}_2$-action?

Invariant Polynomials under Rotations

Manifold acted on by every finite group