Question

Using a submersion and a non-vanishing vector field on the target to obtain a non vanishing vector on the source.

score 129 · Answer 1 · 2019-06-17 20:36:44

129

Views

Using a submersion and a non-vanishing vector field on the target to obtain a non vanishing vector on the source.

Published on 17 Jun 2019 - 20:36

score 70 · Answer 2 · 2026-03-25 12:50:07

70

Views

Tangent space of $O(n)$ by means of a composite of differential maps

Published on 25 Mar 2026 - 12:50

score 319 · Answer 3 · 2026-03-30 07:11:28

319

Views

The pull back of interior multiplication

Published on 30 Mar 2026 - 7:11

score 455 · Answer 4 · 2026-03-25 06:33:15

455

Views

Do all non-orientable have to "close" in some direction?

Published on 25 Mar 2026 - 6:33

score 43 · Answer 5 · 2026-03-27 04:17:41

43

Views

Stable equivalence of framings - examples with large number of stabilizations needed

Published on 27 Mar 2026 - 4:17

score 128 · Answer 6 · 2019-06-19 06:19:11

128

Views

Is it true that every invariant on manifolds comes from cohomology groups?

Published on 19 Jun 2019 - 6:19

score 1k · Answer 7 · 2019-06-19 12:21:29

1k

Views

If $S \subset M$ is an immersed submanifold then the inclusion map $i: S \to M$ is an immersion

Published on 19 Jun 2019 - 12:21

score 60 · Answer 8 · 2026-03-25 04:38:22

60

Views

Showing that the pullback $1$-form is actually properly defined

Published on 25 Mar 2026 - 4:38

score 569 · Answer 9 · 2026-03-27 16:27:02

569

Views

Pushfoward of smooth vector field is smooth?

Published on 27 Mar 2026 - 16:27

score 91 · Answer 10 · 2019-06-20 14:27:46

91

Views

Non orientable manifold.

Published on 20 Jun 2019 - 14:27

score 114 · Answer 11 · 2026-03-25 12:50:15

114

Views

What is the induced orientation on a 1-manifold with boundary that is the image of closed interval under these maps?

Published on 25 Mar 2026 - 12:50

score 134 · Answer 12 · 2026-03-25 14:26:09

134

Views

Is a smooth immersion $c: [a,b] \to M$ injective if its image is a 1-manifold with non-empty boundary?

Published on 25 Mar 2026 - 14:26

score 134 · Answer 13 · 2019-06-21 10:37:12

134

Views

Is there a differentiable surjective map from $\mathbb{Q}^m$ to $\mathbb{Q}^n$ where $n>m$?

Published on 21 Jun 2019 - 10:37

score 84 · Answer 14 · 2026-03-25 07:43:57

84

Views

transversal intersection of three curves in $\mathbb{R}^3$

Published on 25 Mar 2026 - 7:43

score 53 · Answer 15 · 2019-06-22 12:12:14

53

Views

Why in every real $C^1$ manifold can be endowed by an analytic structure

Published on 22 Jun 2019 - 12:12

List Question

Using a submersion and a non-vanishing vector field on the target to obtain a non vanishing vector on the source.

Tangent space of $O(n)$ by means of a composite of differential maps

The pull back of interior multiplication

Do all non-orientable have to "close" in some direction?

Stable equivalence of framings - examples with large number of stabilizations needed

Is it true that every invariant on manifolds comes from cohomology groups?

If $S \subset M$ is an immersed submanifold then the inclusion map $i: S \to M$ is an immersion

Showing that the pullback $1$-form is actually properly defined

Pushfoward of smooth vector field is smooth?

Non orientable manifold.

What is the induced orientation on a 1-manifold with boundary that is the image of closed interval under these maps?

Is a smooth immersion $c: [a,b] \to M$ injective if its image is a 1-manifold with non-empty boundary?

Is there a differentiable surjective map from $\mathbb{Q}^m$ to $\mathbb{Q}^n$ where $n>m$?

transversal intersection of three curves in $\mathbb{R}^3$

Why in every real $C^1$ manifold can be endowed by an analytic structure

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