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archipelago
  • Member for 11 years, 9 months
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question
35
Why should have Peter May worked with CGWH instead of CGH in "The Geometry of Iterated Loop Space"?
Apr 28, 2015
question
26
Are there geometrically formal manifolds, which are not rationally elliptic?
Mar 11, 2014
question
20
Is every topological (resp. Lie-) group the isometrygroup of a metric space (resp. Riemannian manifold)?
Mar 7, 2013
question
18
Is the restriction map for embeddings of manifolds with boundary a fibration?
Feb 11, 2016
question
14
Reference Request: Compact manifolds with boundary have the homotopy type of a CW-complex
Jan 31, 2014
answer
13
Is the Hurewicz theorem ever used to compute abelianizations?
Jan 26, 2017
answer
13
Which stable homotopy groups are represented by parallelizable manifolds?
Jun 26, 2020
answer
13
On the state of the art on closed $(n-1)$-connected $2n$ manifolds
Jan 12, 2021
question
12
Homotopy spheres with vanishing and non-vanishing $\alpha$-invariant
Jun 16, 2014
question
11
Topological Grothendieck Construction
Mar 6, 2015
Top network posts
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38
Does the Levi-Civita connection determine the metric?
37
What is the relation between semidirect products, extensions, and split extensions?
30
Right-adjoint functors are left-exact?
22
Is the free group on an empty set defined?
18
Is there a nontrivial fiber or principal bundle over $S^3$?