User naf

15 votes

2 answers

2k views

What is known about the MMP over non-algebraically closed fields

asked Apr 30, 2010 at 13:31

15 votes

2 answers

2k views

Fundamental groups of Calabi-Yau varieties

asked May 17, 2011 at 7:35

12 votes

0 answers

259 views

On the definition of LGP-monoids in IUT III

asked Jul 4, 2013 at 9:53

11 votes

0 answers

394 views

Algebraizability of formal schemes

asked Nov 14, 2017 at 5:01

10 votes

0 answers

427 views

What is the precise definition of "Hypergeometric motives over $\mathbb{Q}$"?

asked Jun 21, 2021 at 5:01

10 votes

1 answer

489 views

Picard group of Drinfeld upper half space

asked Jan 31, 2014 at 6:49

10 votes

1 answer

512 views

Orders of reductions of rational points on elliptic curves

asked Nov 13, 2017 at 6:41

9 votes

2 answers

1k views

Stacks determined by their coarse moduli spaces

asked Apr 12, 2010 at 14:22

9 votes

1 answer

508 views

Flatness and Cohen-Macaulay rings

asked Nov 11, 2017 at 8:29

9 votes

1 answer

729 views

Triviality of vector bundles on affine open subsets of affine space

asked Jul 20, 2022 at 1:53

9 votes

1 answer

276 views

A question related to Jordan's theorem on subgroups of $\mathrm{GL}_n(\mathbb{C})$

asked Sep 24, 2023 at 4:06

8 votes

0 answers

361 views

A criterion for rational singularities in mixed characteristic

asked Jun 30, 2021 at 2:51

8 votes

0 answers

258 views

Direct summands of a pushforward in the derived category of coherent sheaves

asked Apr 15, 2021 at 2:08

8 votes

1 answer

298 views

An invariance property of rational singularities

asked Apr 24, 2021 at 5:54

6 votes

2 answers

424 views

Representability of flat cohomology by a group scheme

asked Apr 25, 2021 at 9:17

6 votes

1 answer

398 views

Flat maps and Zariski tangent spaces

asked Aug 3, 2019 at 8:32

6 votes

0 answers

226 views

Rank $2$ motivic local systems on a curve

asked Jan 16, 2023 at 4:36

5 votes

1 answer

513 views

Admissible subcategories of $D^b(\mathbb{P}^n)$

asked Nov 8, 2013 at 6:12

4 votes

0 answers

274 views

Irreducibility of the adjoint representation in positive characteristic

asked May 19, 2020 at 10:54

4 votes

1 answer

262 views

Is pseudo-rationality preserved by etale morphisms?

asked Aug 2, 2021 at 3:22

2 votes

0 answers

69 views

Cohomology of compact open subgroups of semisimple groups over local fields

asked May 4, 2022 at 8:47

2 votes

1 answer

223 views

Singularities of contractions of extremal faces

asked Jul 22, 2022 at 4:15

1 vote

0 answers

122 views

On the existence of non-arithmetic lattices in algebraic groups over $\mathbb{Q}$

asked Nov 4, 2023 at 5:19

1 vote

1 answer

127 views

Triangularizability of induced $(\phi, \Gamma)$-modules

asked Jan 9, 2022 at 10:08

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24 Questions

What is known about the MMP over non-algebraically closed fields

Fundamental groups of Calabi-Yau varieties

On the definition of LGP-monoids in IUT III

Algebraizability of formal schemes

What is the precise definition of "Hypergeometric motives over $\mathbb{Q}$"?

Picard group of Drinfeld upper half space

Orders of reductions of rational points on elliptic curves

Stacks determined by their coarse moduli spaces

Flatness and Cohen-Macaulay rings

Triviality of vector bundles on affine open subsets of affine space

A question related to Jordan's theorem on subgroups of $\mathrm{GL}_n(\mathbb{C})$

A criterion for rational singularities in mixed characteristic

Direct summands of a pushforward in the derived category of coherent sheaves

An invariance property of rational singularities

Representability of flat cohomology by a group scheme

Flat maps and Zariski tangent spaces

Rank $2$ motivic local systems on a curve

Admissible subcategories of $D^b(\mathbb{P}^n)$

Irreducibility of the adjoint representation in positive characteristic

Is pseudo-rationality preserved by etale morphisms?

Cohomology of compact open subgroups of semisimple groups over local fields

Singularities of contractions of extremal faces

On the existence of non-arithmetic lattices in algebraic groups over $\mathbb{Q}$

Triangularizability of induced $(\phi, \Gamma)$-modules