List questions from differential-topology

Published on 26 Mar 2026 - 22:54

282

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Definition of integral on open set.

Published on 27 May 2019 - 18:26

89

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Interesting Proofs using degree theory technique

Published on 27 May 2019 - 19:01

411

Views

A question about long exact sequence of finite dim vector spaces

Published on 28 May 2019 - 3:59

344

Views

Cohomology of $T^2$ using Mayer-Vietoris

Published on 28 May 2019 - 8:07

87

Views

Decomposition of volume form

Published on 26 Mar 2026 - 12:13

133

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2-plane bundle over a surface splitting as line bundles

Published on 25 Mar 2026 - 17:38

124

Views

Simple Lie Algebra + $Z(G) = \{1\}$ $\Rightarrow$ Simple Lie Group.

Published on 26 Mar 2026 - 7:42

93

Views

Algebraic intersection of forks and noodles: Bigelow's proof of linearity for braid groups

Published on 26 Mar 2026 - 9:17

176

Views

Do all closed (not necessarily orientable) 3-manifolds embed into some closed orientable 4-manifold?

Published on 29 May 2019 - 4:10

834

Views

Cohomology of a punctured torus using Mayer Vietoris

Published on 26 Mar 2026 - 12:48

1k

Views

Reference request: Studying Loring Tu's “Connections, Curvature, and Characteristic Classes” incompletely, but with restrictions

Published on 25 Mar 2026 - 21:49

233

Views

Immersed hypersurface in a simply connected manifold is two sided?

Published on 29 May 2019 - 7:11

44

Views

Is the extension of differential forms from the fiber unique?

Published on 25 Mar 2026 - 19:05

61

Views

$S^{1}\times (0, 1)$ admits a single smooth chart?

Published on 29 May 2019 - 22:59

List Question

Are products of spheres $\prod_i\Bbb S^{n_i}$ different?

Definition of integral on open set.

Interesting Proofs using degree theory technique

A question about long exact sequence of finite dim vector spaces

Cohomology of $T^2$ using Mayer-Vietoris

Decomposition of volume form

2-plane bundle over a surface splitting as line bundles

Simple Lie Algebra + $Z(G) = \{1\}$ $\Rightarrow$ Simple Lie Group.

Algebraic intersection of forks and noodles: Bigelow's proof of linearity for braid groups

Do all closed (not necessarily orientable) 3-manifolds embed into some closed orientable 4-manifold?

Cohomology of a punctured torus using Mayer Vietoris

Reference request: Studying Loring Tu's “Connections, Curvature, and Characteristic Classes” incompletely, but with restrictions

Immersed hypersurface in a simply connected manifold is two sided?

Is the extension of differential forms from the fiber unique?

$S^{1}\times (0, 1)$ admits a single smooth chart?

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