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seen Nov 3 '13 at 13:41

Nov
2
awarded  Student
Oct
30
comment Is this a pure monomorphism?
Thanks Fernando. Corrected.
Oct
30
revised Is this a pure monomorphism?
added 18 characters in body
Oct
30
asked Is this a pure monomorphism?
May
8
awarded  Scholar
May
8
comment Is this square a push-out square?
What is the minimal condition to impose to a square to deduce that it is a pull back or a push out?
May
8
comment Is this square a push-out square?
Is this square also a pull back in any abelian category?
May
8
accepted Is this square a push-out square?
May
3
revised Is this square a push-out square?
added 80 characters in body
May
3
comment Is this square a push-out square?
Thank you for your answer. But I can't justify what do you mean by $R$. You may mean $E$. Am I right?
May
3
asked Split and pure exact sequence of sheaves
May
3
revised Is this square a push-out square?
added 12 characters in body; deleted 2 characters in body
May
3
awarded  Editor
May
3
revised Is this square a push-out square?
added 143 characters in body
May
3
asked Is this square a push-out square?
Apr
30
awarded  Supporter