List questions from differential-topology

Published on 10 Nov 2016 - 3:47

340

Views

Topological boundary of open set given as preimage

Published on 02 Apr 2026 - 22:13

93

Views

Is there a term for the property of shapes that wraps back into itself?

Published on 25 Mar 2026 - 17:53

505

Views

Every image of an immersion is an image of an injective immersion?

Published on 11 Nov 2016 - 20:21

3.1k

Views

Index of zero of a vector field

Published on 01 Apr 2026 - 13:44

52

Views

Smallest Topology on X x Y needed such that Canonical Projections be Continous

Published on 12 Nov 2016 - 20:26

194

Views

Coincident point of map from mobius to $R^3$

Published on 14 Nov 2016 - 9:10

802

Views

Borsuk-Ulam Theorem, an intuitive proof.

Published on 14 Nov 2016 - 15:52

212

Views

Is there a name given to a space whose first three Stiefel-Whitney classes vanish?

Published on 25 Mar 2026 - 11:11

763

Views

Structure group of tangent bundle of Riemannian manifold

Published on 30 Mar 2026 - 10:21

280

Views

The subgroup $<S>$ generated by an open subset $S$ of a Lie group $G$ is open in $G$

Published on 15 Nov 2016 - 16:00

177

Views

Differential vector field that vanish in the sphere.

Published on 17 Nov 2016 - 3:11

208

Views

Euler characteristic of a surface

Published on 17 Nov 2016 - 3:32

132

Views

de Rham cohomology of $x^3+y^3 +z^3+c \,xyz= 0$ find representatives

Published on 26 Mar 2026 - 14:22

1.2k

Views

(Lee's) Definition of smooth maps on manifolds, in particular vector fields

Published on 01 Apr 2026 - 13:44

List Question

Find values such that f^{-1}(m) and f^{-1}(n) are not diffeomorphic

Topological boundary of open set given as preimage

Is there a term for the property of shapes that wraps back into itself?

Every image of an immersion is an image of an injective immersion?

Index of zero of a vector field

Smallest Topology on X x Y needed such that Canonical Projections be Continous

Coincident point of map from mobius to $R^3$

Borsuk-Ulam Theorem, an intuitive proof.

Is there a name given to a space whose first three Stiefel-Whitney classes vanish?

Structure group of tangent bundle of Riemannian manifold

The subgroup $<S>$ generated by an open subset $S$ of a Lie group $G$ is open in $G$

Differential vector field that vanish in the sphere.

Euler characteristic of a surface

de Rham cohomology of $x^3+y^3 +z^3+c \,xyz= 0$ find representatives

(Lee's) Definition of smooth maps on manifolds, in particular vector fields

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