Apparently, this user prefers to keep an air of mystery about them.
27 Affine scheme on spec(A) of a ring A as the sheafification of a pre-sheave on spec(A)? Nov 10 '11
10 Endomorphisms of vector bundles Dec 6 '09
9 two conjugate subgroups and one is a proper subset of the other? plus, a covering space interpretation. Jan 15 '10
9 For any $n$, does there exist a number field with at least $n$ solutions to the unit equation Oct 9 '11
8 Does a regular pair of elements in a noetherian domain remain regular if their order is switched? Oct 27 '11
8 reduced ⊗ reduced = reduced; what about connected? Dec 20 '09