Dylan Wilson's user avatar
Dylan Wilson's user avatar
Dylan Wilson's user avatar
Dylan Wilson
  • Member for 13 years, 9 months
  • Last seen more than a month ago
127 votes
63 answers
27k views

Counterexamples in algebra?

123 votes
15 answers
18k views

When and how is it appropriate for an undergraduate to email a professor out of the blue?

122 votes
12 answers
11k views

Spectral sequences: opening the black box slowly with an example

40 votes
4 answers
3k views

Pre-triangulated category that isn't triangulated

33 votes
1 answer
2k views

Early stabilization in the homotopy groups of spheres

25 votes
2 answers
2k views

Strict applications of deformation theory in which to dip one's toe

21 votes
3 answers
3k views

Prime ideals in the ring of germs of continuous functions

19 votes
1 answer
3k views

Mazur secret Bourbaki report "Analyse p-adique"

19 votes
3 answers
2k views

Using schemes to prove things about rings

18 votes
4 answers
2k views

Proof that the homotopy category of a stable $\infty$-category is triangulated

18 votes
6 answers
2k views

Is the dual notion of a presheaf useful?

17 votes
3 answers
2k views

Cobordism categories that don't involve manifolds

17 votes
2 answers
2k views

Are $G$-spectra the same as modules over a "group ring spectrum"?

16 votes
6 answers
2k views

Why are equivariant homotopy groups not RO(G)-graded?

15 votes
3 answers
2k views

Stable homotopy category and the moduli space of formal groups

15 votes
1 answer
577 views

Proof for which primes H*G has torsion

14 votes
4 answers
2k views

A toy example of a tensor triangulated category?

12 votes
2 answers
2k views

What makes the stable module category stable?

10 votes
2 answers
1k views

Euler characteristic, Gauss-Bonnet, and a product formula

10 votes
2 answers
858 views

Applications of classifying thick subcategories

10 votes
4 answers
1k views

Which sets of Stiefel-Whitney characteristic numbers can be realized as coming from a manifold?

9 votes
0 answers
330 views

Two transfers for ramified or branched covers

8 votes
1 answer
2k views

Showing the category of perfect complexes on a scheme is essentially small

7 votes
1 answer
399 views

Can any suspension spectrum be realized as Waldhausen K-theory?

7 votes
1 answer
528 views

Integral cohomology operations related to Landweber-Novikov

7 votes
2 answers
613 views

Proper maps and transversality

6 votes
1 answer
470 views

What is the topology on hom-sets of spectra?

6 votes
1 answer
1k views

A chain homotopy that does not arise from a homotopy of spaces?

5 votes
1 answer
392 views

spectral sequence for cobordism without leaving smooth category

4 votes
0 answers
208 views

Checking a monad is idempotent