11

Questions

40
56
votes
6
answers
3k
views

Counterexamples in algebraic topology?

mar 29 at 2:19 Ricardo Andrade 2,3821918

21
31
votes
4
answers
3k
views

third stable homotopy group of spheres via geometry?

jan 25 at 9:26 Johannes Ebert 11.4k3355

15
23
votes
1
answer
1k
views

A question about the topological proofs of Bott periodicity

jan 2 12 at 1:46 Peter May 12.1k13854

9
20
votes
1
answer
579
views

Is every ‘'group-completion’' map an acyclic map?

mar 21 at 22:15 Johannes Ebert 11.4k3355

7
16
votes
2
answers
759
views

Good functorial model for BG

oct 19 10 at 22:50 David Roberts 11.7k21855

9
13
votes
3
answers
511
views

Degrees of self-maps of aspherical manifolds

oct 15 10 at 19:11 Agol 23.9k13384

5
11
votes
2
answers
1k
views

What is a symmetric monoidal $(\infty,n)$-category?

nov 20 11 at 19:30 Jacob Lurie 6,2592436

2
10
votes
1
answer
453
views

Lie’s third theorem via differential graded algebras?

oct 23 10 at 12:19 Urs Schreiber 6,4581321

5
6
votes
2
answers
320
views

Homotopy invariance of vector bundles by parallel transport: reference needed for my students.

jun 23 at 7:22 Liviu Nicolaescu 11.3k12033

5
5
votes
2
answers
569
views

Proof of the ‘'trangression theorem’'

mar 4 11 at 17:11 Eric Wofsey 8,85912646

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