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# Questions

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

feb 5 12 at 16:32 Urs Schreiber 6,4581321

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843
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### Combinatorics of the Stasheff polytopes

sep 6 at 7:51 Tom Copeland 805520

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

nov 30 at 8:15 Peter Michor 5,4621017

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

sep 19 at 9:13 Fernando Muro 5,1691915

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### Geometric models for classifying spaces of a group

oct 29 10 at 4:44 Harry Gindi 8,86823396

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

nov 23 11 at 23:41 Vitali Kapovitch 4,08211122

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

sep 21 10 at 13:08 Tyler Lawson 18.7k24490

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