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Aug
6 |
comment |
locally noetherian categories and the category of quasi-coherent sheaves over a noetherian scheme
In algebraic geometry every injective quasi-coherent sheaf over a locally noetherian scheme can be written as a diret sum of some indecomposable injective qc sheves but an example is appeared in Hartshorne (Residues and duality) states that the category of qc sheves over a locally noetherian scheme may not be locally noetherian |
Aug
6 |
asked | locally noetherian categories and the category of quasi-coherent sheaves over a noetherian scheme |
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 |