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35 votes

2 answers

5k views

Why should have Peter May worked with CGWH instead of CGH in "The Geometry of Iterated Loop Space"?

asked Apr 28, 2015 at 14:19

26 votes

2 answers

2k views

Are there geometrically formal manifolds, which are not rationally elliptic?

asked Mar 11, 2014 at 18:42

20 votes

2 answers

2k views

Is every topological (resp. Lie-) group the isometrygroup of a metric space (resp. Riemannian manifold)?

asked Mar 7, 2013 at 17:31

18 votes

1 answer

1k views

Is the restriction map for embeddings of manifolds with boundary a fibration?

asked Feb 11, 2016 at 17:33

14 votes

2 answers

2k views

Reference Request: Compact manifolds with boundary have the homotopy type of a CW-complex

asked Jan 31, 2014 at 9:06

12 votes

1 answer

714 views

Homotopy spheres with vanishing and non-vanishing $\alpha$-invariant

asked Jun 16, 2014 at 16:01

11 votes

4 answers

1k views

Topological Grothendieck Construction

asked Mar 6, 2015 at 11:14

10 votes

1 answer

934 views

Examples of applications of the Freyd-Mitchell embedding theorem.

asked Apr 20, 2013 at 16:25

8 votes

2 answers

2k views

Properties of quotient categories.

asked May 30, 2013 at 11:53

8 votes

1 answer

652 views

Reference Request: Grouplike Algebras over the little $n$-cubes operad are $n$-fold loop spaces

asked Apr 8, 2015 at 10:58

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10 Questions

Why should have Peter May worked with CGWH instead of CGH in "The Geometry of Iterated Loop Space"?

Are there geometrically formal manifolds, which are not rationally elliptic?

Is every topological (resp. Lie-) group the isometrygroup of a metric space (resp. Riemannian manifold)?

Is the restriction map for embeddings of manifolds with boundary a fibration?

Reference Request: Compact manifolds with boundary have the homotopy type of a CW-complex

Homotopy spheres with vanishing and non-vanishing $\alpha$-invariant

Topological Grothendieck Construction

Examples of applications of the Freyd-Mitchell embedding theorem.

Properties of quotient categories.

Reference Request: Grouplike Algebras over the little $n$-cubes operad are $n$-fold loop spaces