Apparently, this user prefers to keep an air of mystery about them.
42 Does the number pi have any significance besides being the ratio of a circle's diameter to its circumference? Aug 26 '10
26 What do all the $k$-cycles in $S_n$ generate? Aug 30 '10
17 Using Gröbner bases for solving polynomial equations Aug 28 '10
9 Parametrizing implicit algebraic curves Aug 26 '10
5 Dimension of Vector space Aug 11 '10