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Results tagged with at.algebraic-topology
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user 6429
Homotopy theory, homological algebra, algebraic treatments of manifolds.
1
vote
1
answer
156
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Sufficient Conditions for Free Indecomposability
An interesting fact was relayed to me in another question of mine that
If $M$ is any closed manifold with universal cover homeomorphic to $R^n$ for $n>1$ then $\pi_1(M)$ is freely indecomposable. …
- 726
4
votes
2
answers
1k
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Fundamental groups of closed hyperbolic 3-manifolds are freely indecomposable
I believe the following statement is true, and I've even seen it referenced here. Could someone point me to a proof?
The fundamental group of a closed hyperbolic 3-manifold is not a free product.
…
- 726