User Xandi Tuni

27 votes

1 answer

3k views

The Galois group of a random polynomial

asked Mar 14, 2011 at 8:22

18 votes

3 answers

3k views

Lifting varieties to characteristic zero.

asked May 20, 2010 at 9:54

15 votes

1 answer

1k views

Are Chow groups generated by local complete intersections?

asked Apr 3, 2011 at 13:07

15 votes

5 answers

5k views

Converse to Banach's fixed point theorem?

asked May 27, 2010 at 8:35

14 votes

1 answer

1k views

Geometry for Anderson's motives?

asked May 11, 2010 at 19:43

11 votes

0 answers

631 views

An elementary linear algebra problem

asked Jan 24, 2012 at 14:46

10 votes

2 answers

1k views

What Dirichlet doesn't tell...

asked Aug 5, 2011 at 14:03

9 votes

2 answers

497 views

Are algebraic groups defined by their invariants in tensor spaces?

asked Apr 11, 2012 at 8:38

9 votes

2 answers

874 views

Dense sphere packings which are not lattice packings

asked Apr 7, 2011 at 10:18

8 votes

2 answers

991 views

Extensions of an infinite product of copies of Z by Z

asked Sep 29, 2010 at 17:13

8 votes

0 answers

98 views

Counting symmetric convex bodies with no nonzero lattice point in the interior

asked Jun 27, 2018 at 10:00

7 votes

1 answer

459 views

About an embedding of abelian categories into categories of modules

asked Oct 4, 2013 at 12:51

7 votes

1 answer

509 views

About Tate's computation of $K_2^{\rm M}(\mathbb Q)$

asked Mar 26, 2012 at 16:41

7 votes

0 answers

695 views

Integral decomposition of the diagonal (Chow motives)

asked Oct 23, 2010 at 10:01

7 votes

2 answers

4k views

Singular homology of a graph.

asked May 15, 2010 at 10:02

6 votes

1 answer

303 views

Measurable subgroups.

asked May 13, 2010 at 11:20

6 votes

1 answer

837 views

When does Zariski closure commute with base change?

asked Jul 5, 2011 at 8:35

6 votes

1 answer

238 views

The L-function of Q(-1/2) and the "number of prime $p\equiv 3$ divisors" function

asked Feb 1, 2018 at 7:47

5 votes

2 answers

443 views

Which $H$--groups satisfy the rigidity property of abelian varieties?

asked May 25, 2011 at 13:00

5 votes

0 answers

546 views

Barsotti--Weil formula over separably closed fields

asked May 12, 2010 at 19:57

5 votes

2 answers

668 views

Automorphic form encoding the orders of $N$ modulo $p$.

asked Nov 22, 2010 at 13:30

4 votes

1 answer

1k views

Gauss--Manin connection for de Rham realisation

asked May 26, 2010 at 11:55

4 votes

3 answers

504 views

Logarithm of complex matrices in holomorphic families

asked Oct 5, 2011 at 7:53

3 votes

0 answers

288 views

When does Ext^2 vanish in a category of group representations.

asked May 28, 2013 at 17:49

2 votes

0 answers

993 views

Tensor product of commutators vs. commutator in a tensor product

asked Jul 23, 2014 at 12:13

2 votes

2 answers

224 views

Singular points on the Hilbert scheme of a product

asked Nov 21, 2012 at 15:48

2 votes

1 answer

931 views

Surjectivity of bilinear forms.

asked May 18, 2010 at 19:53

1 vote

0 answers

578 views

Splitting of vector bundles on a complex torus

asked Nov 16, 2011 at 12:51

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28 Questions

The Galois group of a random polynomial

Lifting varieties to characteristic zero.

Are Chow groups generated by local complete intersections?

Converse to Banach's fixed point theorem?

Geometry for Anderson's motives?

An elementary linear algebra problem

What Dirichlet doesn't tell...

Are algebraic groups defined by their invariants in tensor spaces?

Dense sphere packings which are not lattice packings

Extensions of an infinite product of copies of Z by Z

Counting symmetric convex bodies with no nonzero lattice point in the interior

About an embedding of abelian categories into categories of modules

About Tate's computation of $K_2^{\rm M}(\mathbb Q)$

Integral decomposition of the diagonal (Chow motives)

Singular homology of a graph.

Measurable subgroups.

When does Zariski closure commute with base change?

The L-function of Q(-1/2) and the "number of prime $p\equiv 3$ divisors" function

Which $H$--groups satisfy the rigidity property of abelian varieties?

Barsotti--Weil formula over separably closed fields

Automorphic form encoding the orders of $N$ modulo $p$.

Gauss--Manin connection for de Rham realisation

Logarithm of complex matrices in holomorphic families

When does Ext^2 vanish in a category of group representations.

Tensor product of commutators vs. commutator in a tensor product

Singular points on the Hilbert scheme of a product

Surjectivity of bilinear forms.

Splitting of vector bundles on a complex torus