User David Lehavi

3 votes

Solving polynomial equations when you know in which number field the solutions live

answered Oct 25, 2009 at 11:28

3 votes

What representative examples of modules should I keep in mind?

answered Oct 22, 2009 at 9:24

3 votes

Accepted

How does one intersect non-transverse divisors on Mg-bar.

answered Oct 29, 2009 at 19:43

3 votes

Moduli stack of principally polarized abelian varieties

answered Nov 22, 2009 at 20:33

3 votes

What do Weierstrass points look like?

answered Dec 17, 2009 at 22:24

3 votes

Accepted

Choosing a fast computer algebra system that works in characteristic p?

answered Dec 31, 2009 at 7:08

3 votes

Rationality of GIT quotients

answered Feb 23, 2010 at 7:49

3 votes

Analysis of a quadratic diophantine equation

answered Oct 25, 2010 at 20:59

3 votes

When is a product of elliptic curves isogenous to the Jacobian of a hyperelliptic curve?

answered Aug 10, 2010 at 11:53

3 votes

Why does the parameterization (F:F':1) happen?

answered Jun 14, 2011 at 18:58

3 votes

Accepted

Textbooks on SINGULAR and Macaulay 2

answered May 3, 2010 at 5:19

3 votes

Proofs that require the existence of large finite numbers

answered Apr 12, 2010 at 7:21

3 votes

Accepted

Examples of nontrivial configurations of rational curves of degree $\leq 3$ in the projective plane

answered Jul 25 at 6:08

3 votes

Square of an elliptic curve and projective plane

answered Aug 17, 2010 at 6:12

3 votes

What is the mod l monodromy of a generic trigonal curve?

answered Dec 1, 2012 at 0:45

3 votes

Accepted

Genus 2 curves vs Abelian surfaces

answered Oct 10, 2012 at 21:25

2 votes

families of genus four curves with only hyperelliptic reduction

answered Feb 19, 2013 at 19:02

2 votes

Fast computation of a Groebner basis. What is possible?

answered Sep 20, 2014 at 20:20

2 votes

Moduli of smooth curves

answered Oct 16, 2023 at 8:09

2 votes

Theorems in Euclidean geometry with attractive proofs using more advanced methods

answered Jul 11, 2010 at 12:36

2 votes

How to demonstrate $SO(3)$ is not simply connected?

answered Apr 29, 2010 at 13:53

2 votes

Why does the algebraic condition of flatness on the structure sheaves give a good definition of family?

answered Aug 10, 2010 at 16:06

2 votes

Modular curves of genus zero and normal forms for elliptic curves

answered Mar 4, 2010 at 9:03

2 votes

Nonalgebraic complex manifolds

answered Jan 29, 2010 at 22:34

2 votes

Why is the Hodge class of \bar{M_g} big and nef?

answered Oct 22, 2009 at 21:24

2 votes

Why are functional equations important?

answered Oct 23, 2009 at 7:47

2 votes

What is (co)homology, and how does a beginner gain intuition about it?

answered Oct 15, 2009 at 20:37

2 votes

Are good introductory/pedagogical problems in algebraic geometry rare?

answered Oct 16, 2009 at 8:41

2 votes

Accepted

Is there a stable algorithm for polynomial division (in several variables)?

answered Nov 12, 2009 at 8:08

2 votes

Accepted

Triviality of the Hodge bundle for a special family of semistable curves

answered Nov 3, 2009 at 7:32

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109 Answers

Solving polynomial equations when you know in which number field the solutions live

What representative examples of modules should I keep in mind?

How does one intersect non-transverse divisors on Mg-bar.

Moduli stack of principally polarized abelian varieties

What do Weierstrass points look like?

Choosing a fast computer algebra system that works in characteristic p?

Rationality of GIT quotients

Analysis of a quadratic diophantine equation

When is a product of elliptic curves isogenous to the Jacobian of a hyperelliptic curve?

Why does the parameterization (F:F':1) happen?

Textbooks on SINGULAR and Macaulay 2

Proofs that require the existence of large finite numbers

Examples of nontrivial configurations of rational curves of degree $\leq 3$ in the projective plane

Square of an elliptic curve and projective plane

What is the mod l monodromy of a generic trigonal curve?

Genus 2 curves vs Abelian surfaces

families of genus four curves with only hyperelliptic reduction

Fast computation of a Groebner basis. What is possible?

Moduli of smooth curves

Theorems in Euclidean geometry with attractive proofs using more advanced methods

How to demonstrate $SO(3)$ is not simply connected?

Why does the algebraic condition of flatness on the structure sheaves give a good definition of family?

Modular curves of genus zero and normal forms for elliptic curves

Nonalgebraic complex manifolds

Why is the Hodge class of \bar{M_g} big and nef?

Why are functional equations important?

What is (co)homology, and how does a beginner gain intuition about it?

Are good introductory/pedagogical problems in algebraic geometry rare?

Is there a stable algorithm for polynomial division (in several variables)?

Triviality of the Hodge bundle for a special family of semistable curves