48

Answers
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10
Given a family of curves, when does there exist a fibered surface over Spec Z parametrizing them?
10
Degeneration of projective curves
7
Are sheaves of principal parts locally free over some dense open set?
7
Smooth quadric over p-adic integers
7
Is any simple abelian variety covered by a non-simple abelian variety
6
Semistable sheaves on a K3 which are not simple
5
Formal lifts of schemes in finite characteristic
5
A bestiary of topologies on Sch
5
Is there for every variety X an abelian variety A such that their 1st l-adic cohomologies are isomorphic?
5
Fundamental groups of resolutions of complete intersections
4
On the points of indeterminacy of a rational map
4
Determination of rationality and computing a rational parametrization
4
D-module that is coherent as O-module
4
global sections of some sheaves
4
systems of parameters vs. minimal “exhausting” systems in a Noetherian local ring
4
When is there a deformation of a given singularity to a normal singularity
4
A question on deformations of Theta divisor in the Jacobian of a complex curve
4
Projective resolution of modules over rings which are regular in codimension n
4
A local-to-global principle for being a rational surface
3
Quartic form which is irreducible but not geometrically irreducible
3
“Bad” reduction of Shimura curves via dual graphs
3
Isomorphism of the function field of the projective line with $\mathbf{C}(s)$
3
Jacobians defined over smaller fields
2
Is there any holomorphic version of the tubular neighborhood theorem?
2
Collecting proofs that finite multiplicative subgroups of fields are cyclic.
2
Is a complex manifold projective just because its blow-up at a point is ?
2
Are there compact analogues of Cartan’s theorems A and B?
2
Algebraic geometry examples
2
Is $\mathbb{A}²$ the universal smooth scheme which is a finite cover of $\mathbb{A}²/μ₂$?
2
Is $X\times \mathbb{P}^{n}$ connected for a smooth, proper and connected scheme $X$?
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