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Results tagged with differential-topology
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user 88487
The study of differentiable manifolds and differentiable maps. One fundamental problem is that of classifying manifolds up to diffeomorphism. Differential topology is what Poincaré understood as topology or “analysis situs”.
2
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226
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Do submersions induce open maps between spaces of differentiable maps?
Let $X$, $Y$ and $Z$ be smooth manifolds.
Any differentiable map $f \colon Y \rightarrow Z$ induces a continuous map $f_{\ast} \colon C^{\infty}(X, Y) \rightarrow C^{\infty}(X, Z)$ via composition $g …
- 165
1
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0
answers
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Does a homotopy sphere that bounds a highly connected manifold also bound a parallelizable m...
Suppose that the homotopy sphere $\Sigma^{n}$ can be realized as the boundary of a smooth $(n+1)$-dimensional cobordism that is $(n-1)/2$-connected for $n$ odd (respectively, $(n-2)/2$-connected for …
- 165
9
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1
answer
458
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Can any path in the diffeomorphism group of a smooth compact manifold be approximated by a s...
Given a smooth compact $n$-dimensional manifold $M^{n}$, let $\operatorname{Diff}(M)$ denote the group of smooth diffeomorphisms $M \rightarrow M$ equipped with the Whitney $C^{\infty}$-topology. Let …
- 165