Apparently, this user prefers to keep an air of mystery about them.
10 Subgroups of $S_4$ isomorphic to $S_3$ and $S_2$? oct 18 '11
5 What does it mean by the order of a group? oct 12 '11
3 If S is the cyclic subgroup of order n in the dihedral group Dn, show that Dn/S is isomorphic to Z2 nov 3 '11
2 If $f$ is a non-constant analytic function on a compact domain $D$, then $Re(f)$ and $Im(f)$ assume their max and min on the boundary of $D$. mar 6 '12
1 Show every subgroup of D4 can be regarded as an isotropy group for a suitable action of D4 oct 27 '11
1 How to show that the group of nonzero real numbers under multiplication is not isomorphic to the group of real numbers under addition? sep 26 '11