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# Questions

11
25
votes
5
answers
1k
views

### How are the classifying space of $E_8$ and $K(\mathbb{Z},4)$ related?

feb 5 12 at 16:32 Urs Schreiber 6,7351422

4
14
votes
1
answer
573
views

### Whitehead product with identity on homotopy groups of spheres

sep 19 at 9:13 Fernando Muro 5,2931916

6
11
votes
3
answers
669
views

### How transitive are the actions of symplectomorphism groups ?

nov 30 at 8:15 Peter Michor 6,42811520

9
10
votes
2
answers
855
views

### Combinatorics of the Stasheff polytopes

sep 6 at 7:51 Tom Copeland 805520

3
7
votes
1
answer
392
views

### Hopf algebras as cohomology of $\mathbb{CP}^\infty$, $\Omega S^3$ and related $H$-spaces

sep 21 10 at 13:08 Tyler Lawson 19k34794

2
6
votes
1
answer
442
views

### Homotopy type of the self-homotopy equivalences of a bouquet of spheres

nov 23 11 at 23:41 Vitali Kapovitch 4,10211122

2
5
votes
2
answers
497
views

### Geometric models for classifying spaces of a group

oct 29 10 at 4:44 Harry Gindi 8,94823397

1
3
votes
2
answers
228
views

### Tutte polynomials of appropriate Cayley graphs

oct 12 11 at 7:12 Bruce Westbury 6,75021025