Apparently, this user prefers to keep an air of mystery about them.
8 When is the tensor product of two fields a field? nov 29 '11
5 Is every poset the poset of prime ideals of a ring? apr 28 '11
4 When is the degree of the pull-back of a Weil divisor a constant multiple of its degree? apr 26 '11
3 divisorial part of an ideal mar 29 '11
3 Algebraic applications of Hurwitz' theorem apr 18 '11
3 Valuations and separable extensions feb 22 '11