Apparently, this user prefers to keep an air of mystery about them.
15 Does a finite ring's additive structure and the structure of its group of units determine its ring structure? apr 27 '11
7 How to show that a prime degree separable field extension containing a nontrivial conjugate of a primitive element is Galois and cyclic mar 9 '12
5 Hahn Banach Theorem mar 17 '13
4 How to show that a subfield of a Galois extension with Galois group $S_n$ has only trivial automorphisms. mar 9 '12