List questions from differential-topology

Published on 05 Dec 2014 - 23:02

200

Views

cohomology homomorphism between grassmannians induced by inclusion

Published on 25 Mar 2026 - 23:51

67

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Prove that in the half plane $\{x>0\}$, ω is the differential of a function.

Published on 06 Dec 2014 - 15:29

454

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How do you work with the space of circles on the sphere considered as the projective line?

Published on 29 Mar 2026 - 3:35

843

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How does the Möbius group act on circlines?

Published on 29 Mar 2026 - 2:29

111

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Eembedding of product $\mathbb{S}^2\times\mathbb{S}^3$ into $\mathbb{R}^6$

Published on 08 Dec 2014 - 14:24

914

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Pullback of a 1 form on the circle

Published on 30 Mar 2026 - 9:47

228

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Differential forms, number of zeros on disk

Published on 02 Apr 2026 - 15:12

141

Views

no point where assumptions of Inverse Function Theorem hold?

Published on 02 Apr 2026 - 15:12

174

Views

Alexander Method for non-orientable Surface

Published on 28 Mar 2026 - 2:21

156

Views

Let ($\mathbb{R}^n$,*) be a division algebra over $\mathbb{R}$, $n>1$, $\Rightarrow n$ is even

Published on 09 Dec 2014 - 10:47

2.6k

Views

Every immersion is locally an embedding?

Published on 02 Apr 2026 - 15:11

446

Views

definition of differential does not depend on the choice of the curve, differential is a linear map

Published on 02 Apr 2026 - 15:24

409

Views

Smooth function on intersection is the difference of two smooth functions

Published on 09 Dec 2014 - 19:33

421

Views

Non homeomorphism

Published on 10 Dec 2014 - 7:47

List Question

Show that the volume element of $V$ is $ϕ_1\wedge\cdots\wedge ϕ_k$.

cohomology homomorphism between grassmannians induced by inclusion

Prove that in the half plane $\{x>0\}$, ω is the differential of a function.

How do you work with the space of circles on the sphere considered as the projective line?

How does the Möbius group act on circlines?

Eembedding of product $\mathbb{S}^2\times\mathbb{S}^3$ into $\mathbb{R}^6$

Pullback of a 1 form on the circle

Differential forms, number of zeros on disk

no point where assumptions of Inverse Function Theorem hold?

Alexander Method for non-orientable Surface

Let ($\mathbb{R}^n$,*) be a division algebra over $\mathbb{R}$, $n>1$, $\Rightarrow n$ is even

Every immersion is locally an embedding?

definition of differential does not depend on the choice of the curve, differential is a linear map

Smooth function on intersection is the difference of two smooth functions

Non homeomorphism

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