Finite group acting on a smooth manifold $M$ by diffeomorphisms. Fixed Point set is Smooth Manifold
128410
Showing that the set of fixed points is a smooth manifold
98474
Show the existence of a certain subgroup of F2
75391
How to prove that a left-invariant metric on a Lie group is smooth?
151637
How do we prove that this set is not manifold?
21178
Show that $f$ extends to a smooth map.
84419
Product of manifolds & orientability
145220
Homology Groups of $S^n$
55810
Let $G$ be a Lie group. Show that there is a diffeomorphism $TG \cong G \times T_e G$.
90192
Kernel and Image of a group homomorphism
63691
G acts on X transitively, then there exists some element that does not have any fixed points
92050
Poincaré's theorem about groups
33294
The correspondence theorem for groups
157742
Prove that $U(n)$ is a manifold
18181
Complete classification of the groups for which converse of Lagrange's Theorem holds
18687
First and second homotopy groups of a connected Lie group
143043
When is a local homeomorphism a covering map?
85299
computing the orbits for a group action