Apparently, this user prefers to keep an air of mystery about them.
9 Is there an easy example of a vector space which can not be endowed with the structure of a Banach space Oct 19 '11
7 Twists of curves over number fields Oct 27 '11
2 The sup-norm of a diagonalizable operator Oct 19 '11
1 The lambda invariant Oct 21 '11
1 Cauchy sequence in a normed space Oct 19 '11