44

Answers
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19
Can any smooth hyperelliptic curve be embedded in a quadric surface?
18
Taking “Zooming in on a point of a graph” seriously.
18
Problem in Rick Miranda: finding genus of a Projective curve
16
Why the underlying function of a monomorphism may not be an injection
15
When does a ring surjection imply a surjection of the group of units?
12
Does there exist an infinite non-commutative division ring with finite center?
10
Can an infinite commutative ring have a finite (but nonzero) number of non-nilpotent zero-divisors?
9
Higher dimensional version of the Hurwitz formula?
9
Are there any good computer programs for drawing (algebraic) curves?
9
Any irreducible component of the HIlbert scheme contains an irreducible element
9
When does the blow-up of $CP^2$ at N points embed in $CP^4$?
7
Quartic Space Curves
7
Line bundles, linear systems and normalization
7
Does a weaker condition than vanishing derivative imply a function being constant?
6
is there some condition I can impose on families of curves on a surface such that the second Ext between the ideal sheaf and the structure sheaf is zero?
6
What can be the analogue of Frobenius in complex geometry?
6
divisors on Abelian varieties
5
Is Hartshorne’s definition of the category of varieties natural?
5
Reference Request: Deformations of a map bijective to global sections of the pullback of the tangent sheaf
5
Hilbert scheme of points on a surface as moduli space of semistable sheaves
4
Condition on the canonical divisor for Yau Inequality - effective or ample?
4
Is it possible to check two curves on birational equivalence by some computer algebra system?
4
Incidences of Lines / Circles in the Plane
4
Incidence Correspondence
4
Riemann-Roch for Zero Cycles on a Surface
4
Theorems in Euclidean geometry with attractive proofs using more advanced methods
3
A proof for a statement about polynomial automorphism
3
On the construction of the varieties parametrizing special linear series on a curve
3
Necessary and sufficient conditions for a sum of idempotents to be idempotent
2
Irreducibility of fibers vs. irreducibility of fibered product
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