Why quaternions is a group?
130683
Quaternion group associativity
26698
Math beyond Quaternions
134362
Rotation of group of rigid motions of cube is isomorphic to $S_{4}$
90365
Riemannian Manifolds with $n(n+1)/2$ dimensional symmetry group
39550
Intuition behind conjugation in group theory
43783
Abelian group (Commutative group)
75157
Every Group is a Fundamental Group
97177
Symmetry group of Tetrahedron
97637
Showing that isotropy groups are submanifolds
91021
Torsion elements of a group aren't necessarily a subgroup
134602
Convert quaternion to a different coordinate system
2458
Multiplicative group $(\mathbb R^*, ×)$ is group but $(\mathbb R, ×)$ is not group, why?
107452
Conversion of rotation matrix to quaternion
10413
Why do quarks tend to bond in groups of three?
9565
Is there an easy way to show which spheres can be Lie groups?
141610
Can Euler's identity be extended to quaternions?
73113
Groups and Symmetries