List questions from differential-topology

Published on 20 Jun 2018 - 9:01

574

Views

Relation between non-vanishing Vector Fields on $\mathbb{T}^2$ and Fundamental Group Maps

Published on 21 Jun 2018 - 20:29

113

Views

Is $\iota_*:H_1(M-K) \to H_1(M)$ surjective if $K$ is an embedded loop which is null-homotopic?

Published on 22 Jun 2018 - 7:10

83

Views

Smooth $S^3$-action

Published on 22 Jun 2018 - 15:28

222

Views

Directional Derivative as the correct generalization of the derivative?

Published on 26 Mar 2026 - 17:33

148

Views

Question about smoothing differential forms/currents

Published on 25 Mar 2026 - 5:59

169

Views

Making use of Jacobian Matrix in showing that a value is regular.

Published on 25 Jun 2018 - 8:01

929

Views

How to prove a function is a covering map?

Published on 25 Mar 2026 - 12:52

107

Views

Definition of a smooth 4-manifold

Published on 25 Jun 2018 - 16:48

82

Views

Doubts regarding the definition of surface in $\mathbb R^3$

Published on 26 Jun 2018 - 8:13

226

Views

Can I use de Rham Cohomology to prove exactness of 1-forms on the $2$ sphere?

Published on 26 Mar 2026 - 1:04

208

Views

Determine conditions on $X$ and $Y$ that make span$(X,Y)$ an involutive distribution. How does this affect the maximal integral submanifolds?

Published on 28 Jun 2018 - 9:25

841

Views

Sphere eversions

Published on 01 Jul 2018 - 15:04

848

Views

Removing a point from a sphere

Published on 02 Jul 2018 - 23:34

63

Views

I'm looking for a good book with examples on Differential Manifolds

Published on 03 Jul 2018 - 2:23

List Question

Integration on a embedded hypersurface

Relation between non-vanishing Vector Fields on $\mathbb{T}^2$ and Fundamental Group Maps

Is $\iota_*:H_1(M-K) \to H_1(M)$ surjective if $K$ is an embedded loop which is null-homotopic?

Smooth $S^3$-action

Directional Derivative as the correct generalization of the derivative?

Question about smoothing differential forms/currents

Making use of Jacobian Matrix in showing that a value is regular.

How to prove a function is a covering map?

Definition of a smooth 4-manifold

Doubts regarding the definition of surface in $\mathbb R^3$

Can I use de Rham Cohomology to prove exactness of 1-forms on the $2$ sphere?

Determine conditions on $X$ and $Y$ that make span$(X,Y)$ an involutive distribution. How does this affect the maximal integral submanifolds?

Sphere eversions

Removing a point from a sphere

I'm looking for a good book with examples on Differential Manifolds

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