David Corwin's user avatar
David Corwin's user avatar
David Corwin's user avatar
David Corwin
  • Member for 14 years, 5 months
  • Last seen more than a month ago
12 votes
11 answers
4k views

Are nets and filters useful in geometry and topology?

12 votes
4 answers
834 views

Congruence Subgroups as Open Subgroups of the Modular Group Under the Right Topology

12 votes
2 answers
2k views

Proving Independence of Axioms by Exhibiting Models Which Don't Satisfy Our Intuition

12 votes
2 answers
333 views

Conjugacy classes as left Kan extension of forgetful functor

11 votes
0 answers
255 views

Group cohomology as homotopy groups

11 votes
1 answer
2k views

Effective weight-monodromy conjecture

11 votes
0 answers
520 views

Adeles of Holomorphic Functions

11 votes
2 answers
1k views

Serre's Open Image Theorem Without Shafarevich's Theorem

10 votes
2 answers
921 views

What is a(n algebro-geometric) family of modular forms?

10 votes
4 answers
3k views

What does ramification have to do with separability?

9 votes
1 answer
311 views

Tube of a mod p point on a smooth Z_(p)-scheme

9 votes
1 answer
1k views

Adelic formulations of complex multiplication and modular curves

9 votes
2 answers
874 views

Can formal logic give a precise notion of "canonical"?

9 votes
2 answers
726 views

Does inclusion from n-stacks into (n+1)-stacks preserve the sheaf condition?

8 votes
1 answer
484 views

Category of modules over an Azumaya algebra and the Brauer group

8 votes
1 answer
488 views

Is every functor inducing a homotopy equivalence a composition of adjoint functors?

8 votes
0 answers
592 views

A Generalization of the Tate-Shafarevich/Tate/Fontaine-Mazur Conjectures

8 votes
1 answer
2k views

How do I visualize finite covers of curves over non-algebraically closed fields?

8 votes
0 answers
442 views

Relation between group representations and elements of group cohomology groups

7 votes
0 answers
843 views

Rigid Uniformization vs Grothendieck's Local Monodromy Theory

7 votes
8 answers
1k views

Result that follows from ZFC and not ZF but are strictly weaker than choice

7 votes
0 answers
434 views

Status of the conjectured vanishing of Bloch-Kato H^2

7 votes
1 answer
516 views

Which cases of Beilinson-Bloch-Kato for elliptic motives are known?

7 votes
0 answers
167 views

Has anyone written about filtered Tannakian categories?

7 votes
0 answers
248 views

What exactly is a Tannakian subcategory?

6 votes
0 answers
447 views

Strict Henselization vs base-change to algebraic closure

6 votes
3 answers
11k views

Sums of uncountably many real numbers [closed]

6 votes
1 answer
412 views

Classify $K(\pi,n)$ that are manifolds

6 votes
1 answer
676 views

Selmer Group versus Selmer Variety

6 votes
2 answers
713 views

Should the Grothendieck ring of varieties be K_0 of numerical motives?