TonyS
  • Member for 12 years
2 answers
9 votes
542 views
2 bookmarks
Cohomology of quaternions on an abelian variety
1 answers
7 votes
686 views
Extensions of torsion modules
2 answers
7 votes
623 views
4 bookmarks
Bimodules over division rings
1 answers
7 votes
1k views
3 bookmarks
Does local triviality in the fppf topology imply local triviality in the etale topology?
1 answers
5 votes
1k views
1 bookmarks
Generalized Beilinson spectral sequences
2 answers
5 votes
726 views
7 bookmarks
Chern classes in flat families
1 answers
4 votes
446 views
Extension of a first order deformation of a sheaf
1 answers
4 votes
514 views
1 bookmarks
Serre duality and low dimensional cohomology groups
1 answers
4 votes
1k views
3 bookmarks
Length of a module over different rings
1 answers
3 votes
473 views
1 bookmarks
Do cohomologically trivial line bundles affect morphisms?
1 answers
3 votes
500 views
Base change and relative Ext over noncommutative rings
1 answers
3 votes
1k views
1 bookmarks
Chern classes of the direct image of an ideal sheaf resp. skyscraper sheaf
1 answers
3 votes
542 views
2 bookmarks
When does the forgetful functor S-Mod -> R-Mod induce injective maps on Ext-groups?
1 answers
3 votes
418 views
2 bookmarks
Sequences of groups, exact not just in étale but also in the Zariski topology
1 answers
3 votes
673 views
4 bookmarks
How to find the action of an automorphism on the 27 lines on a cubic surface?
2 answers
3 votes
422 views
1 bookmarks
Chern character of Hom-sheaves
2 answers
3 votes
534 views
1 bookmarks
Comparing homomorphisms over different base rings
1 answers
3 votes
282 views
2 bookmarks
Families of sheaves on arithmetic varieties
0 answers
3 votes
235 views
How to find special hermitian metrics on vector bundles
2 answers
2 votes
369 views
Are morphisms of finite length modules determined by the behaviour of the simple modules?
1 answers
2 votes
2k views
1 bookmarks
Definition of a complex structure on a vector bundle
0 answers
2 votes
116 views
1 bookmarks
Properties of special Cayley-Bacharach bundles on a K3-surface
1 answers
2 votes
612 views
How does torsion behave under the direct image functor?
1 answers
2 votes
1k views
Direct image sheaf and tensor product (is the projection formula an isomorphism?)
2 answers
2 votes
225 views
Is restricting the support of an Artinian sheaf a closed condition?
1 answers
2 votes
220 views
2 bookmarks
Behaviour of Morita equivalence in families of sheaves
0 answers
2 votes
243 views
Is simplicity preserved under completion of the base ring?
2 answers
2 votes
851 views
Torsion in tensor products over noncommutative rings
1 answers
2 votes
459 views
Quotient of an abelian surface by a finite group, irreducible components
2 answers
2 votes
292 views
3 bookmarks
Line bundles on special abelian surfaces