Apparently, this user prefers to keep an air of mystery about them.
18 Why is an injective quasi-coherent sheaf's restriction to an open subset still an injective object? Nov 25 '09
16 In what topology DM stacks are stacks Feb 20 '10
9 Extraordinary cohomology as a derived functor? Jul 17 '10
8 Derived categories of (coherent) sheaves of modules: exceptional images, gluing, and proper descent? May 27 '11
8 Flatness of relative canonical bundle Mar 16 '10
8 Gerbes for a cyclic group. (or maybe G_m too) Nov 26 '09