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Hagen
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23
When is the tensor product of two fields a field?
Nov 29, 2011
answer
10
Is every poset the poset of prime ideals of a ring?
Apr 28, 2011
answer
9
How badly can Krull's Hauptidealsatz fail for non-Noetherian rings?
Oct 18, 2010
answer
9
Two questions about finiteness of ideal classes in abstract number rings
Oct 21, 2010
answer
5
Valuations and separable extensions
Feb 22, 2011
answer
4
Algebraic applications of Hurwitz' theorem
Apr 18, 2011
answer
4
When is the degree of the pull-back of a Weil divisor a constant multiple of its degree?
Apr 26, 2011
answer
3
behavior of places of a function field under automorphism
Jul 20, 2010
answer
3
divisorial part of an ideal
Mar 29, 2011
answer
2
Reflexive modules over a 2-dimensional regular local ring
Apr 29, 2010