User Keerthi Madapusi

26 votes

Accepted

Why is Class Field Theory the same as Langlands for GL_1?

answered May 31, 2011 at 3:05

25 votes

Accepted

Spin group as an automorphism group

answered Jul 30, 2013 at 14:17

16 votes

Accepted

Deformations of p-divisible groups

answered Jun 2, 2013 at 20:47

14 votes

Accepted

On Grothendieck's period relations

answered Jun 17, 2012 at 3:59

13 votes

Famous mathematicians with background in arts/humanities/law etc

answered Sep 29, 2011 at 4:38

12 votes

Accepted

Mumford-Tate group and Galois representations

answered Dec 1, 2011 at 15:04

12 votes

Period rings for Galois representations

answered Feb 8, 2011 at 16:50

11 votes

Accepted

Adelic formulations of complex multiplication and modular curves

answered May 8, 2012 at 22:17

11 votes

Accepted

Status of Grothendieck's conjecture on homomorphisms of abelian schemes

answered Mar 3, 2013 at 4:05

9 votes

What's the status of Arthur's announced classification for GSp(4)?

answered Feb 13, 2015 at 22:41

9 votes

Normal Varieties

answered Aug 29, 2010 at 15:49

7 votes

Problems where we can't make a canonical choice, solved by looking at all choices at once

answered Dec 21, 2010 at 15:01

7 votes

Frobenius elements from the point of view of étale fundamental groups

answered Feb 1, 2011 at 20:48

7 votes

Accepted

Image of projective 1-space contained in projective 1-space over a smaller field?

answered Jun 10, 2011 at 18:12

7 votes

On a Theorem of Fontaine

answered May 4, 2011 at 4:40

7 votes

Accepted

On Weil's characters of type (A)

answered Jan 31, 2013 at 1:38

5 votes

Opers, connections

answered May 24, 2011 at 7:37

5 votes

Family of Enriques surfaces and Grothendieck-Riemann-Roch

answered Aug 25, 2010 at 12:30

5 votes

Accepted

Twisted forms and $\check{H}^1$

answered Apr 21, 2011 at 13:33

4 votes

Accepted

$k$ structures on $K$ vector spaces

answered Apr 21, 2011 at 16:52

4 votes

Accepted

Are all Shimura Varieties Special Subvarieties of the Siegel modular Variety?

answered Mar 8, 2011 at 21:17

4 votes

Accepted

Isomorphism between pull-backs of an F-crystal by different liftings of Frobenius

answered Sep 29, 2011 at 12:45

4 votes

Accepted

Question about Faltings, Chai: Degeneration of abelian varieties

answered Oct 21, 2011 at 0:50

4 votes

Accepted

Finite generation and Henselization

answered Jul 17, 2013 at 22:24

3 votes

Cohen-Macaulay and descent

answered Sep 4, 2013 at 23:55

3 votes

vanishing of cohomology sheaves with supports and values in the multiplicative group

answered Jan 31, 2012 at 19:57

3 votes

Accepted

(crystalline cohomology version's) Tate's conjecture for K3 surfaces

answered Jun 23, 2023 at 3:30

3 votes

Accepted

What kind of structures allow Galois descent?

answered Jan 14, 2011 at 3:40

2 votes

Direct image of structure sheaf under base change

answered Apr 12, 2011 at 13:02

2 votes

Verifying claims in the proof of the Rigidity Lemma (Mumford, GIT)

answered Jan 19, 2012 at 2:28

Stack Exchange Network

30 Answers

Why is Class Field Theory the same as Langlands for GL_1?

Spin group as an automorphism group

Deformations of p-divisible groups

On Grothendieck's period relations

Famous mathematicians with background in arts/humanities/law etc

Mumford-Tate group and Galois representations

Period rings for Galois representations

Adelic formulations of complex multiplication and modular curves

Status of Grothendieck's conjecture on homomorphisms of abelian schemes

What's the status of Arthur's announced classification for GSp(4)?

Normal Varieties

Problems where we can't make a canonical choice, solved by looking at all choices at once

Frobenius elements from the point of view of étale fundamental groups

Image of projective 1-space contained in projective 1-space over a smaller field?

On a Theorem of Fontaine

On Weil's characters of type (A)

Opers, connections

Family of Enriques surfaces and Grothendieck-Riemann-Roch

Twisted forms and $\check{H}^1$

$k$ structures on $K$ vector spaces

Are all Shimura Varieties Special Subvarieties of the Siegel modular Variety?

Isomorphism between pull-backs of an F-crystal by different liftings of Frobenius

Question about Faltings, Chai: Degeneration of abelian varieties

Finite generation and Henselization

Cohen-Macaulay and descent

vanishing of cohomology sheaves with supports and values in the multiplicative group

(crystalline cohomology version's) Tate's conjecture for K3 surfaces

What kind of structures allow Galois descent?

Direct image of structure sheaf under base change

Verifying claims in the proof of the Rigidity Lemma (Mumford, GIT)