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Results tagged with at.algebraic-topology
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user 11092
Homotopy theory, homological algebra, algebraic treatments of manifolds.
1
vote
1
answer
304
views
good perspective in viewing manifolds of infinite dimension
Borel conjectued aspherical closed manifolds are topologically rigid.(i.e.a homotopy equivalence between two aspherical manifolds is homotopic to a homeomorphism).
now,soppuse M is a K(G,1) space,
it …
- 179
8
votes
2
answers
1k
views
fundamental group and complete invariant of irreducible 3-manifolds
I heard that,by Perelman's work,we can get that the fundamental group is a
complete invariant of irreducible 3-manifolds (except for lens spaces).
can someone help explain this.Thank you!
- 179
8
votes
1
answer
677
views
topological type of smooth manifolds with prescribed homotopy type and pontryagin class
Can someone help explain the following result:
If the dimension is at least five, there are at most finitely many different smooth manifolds with given homotopy type and Pontryagin classes.
Thank yo …
- 179