Apparently, this user prefers to keep an air of mystery about them.
7 Two ideals both alike in dignity, in fair Paris where we lay our scene. (proving ideals are isomorphic) Jan 25 '14
5 Number of remainders after dividing $x$ Dec 24 '13
2 Product in an non-commutative group Nov 17 '13
2 Action of the linear group over a vector space Nov 22 '13