Apparently, this user prefers to keep an air of mystery about them.
26 morphism closed + fibres proper => proper? Feb 16 '10
25 Is there a connected non-affine scheme $S$ such that it is the union of rings of integers of number fields? Sep 25 '11
25 Do all curves have Néron models Oct 24 '12
22 Continuity in terms of lines Nov 21 '10
21 Rings in which every non-unit is a zero divisor Oct 18 '10
19 Noether's normalization lemma over a ring A Oct 18 '10