The center of the fundamental group of closed surface
89843
Is the center of the fundamental group of the double torus trivial?
104509
The center of $A_n$ is trivial for $n \geq 4$
29802
Part of simple proof of nontrivial center in p-group
84738
Center of Odd Dihedral Group
29269
fundamental group of $GL^{+}_n(\mathbb{R})$
135126
Proving that the quotient manifold is orientable if and only if the group action is orientation-preserving
61816
Cut points and connected space
114320
Showing that if the center of a group is trivial, then the center of its automorphism group is trivial
90365
Riemannian Manifolds with $n(n+1)/2$ dimensional symmetry group
138410
Centralizer of $\mathbb{C}[G]$ in $\mathbb{C}[H]$
55064
Homology groups of torus
84686
Geometric Description Of a Set In The Complex Plane
145220
Homology Groups of $S^n$
37971
Prove that the center of a group is a normal subgroup
150854
Identifying a quotient group (NBHM-$2014$)
131519
intuition on the fundamental group of $S^1$
90764
Prove that the fundamental group of the circle is non-trivial if the fundamental group of a space $X$ is non-trivial