List questions from manifolds

Published on 24 Apr 2026 - 1:13

414

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A closed set is not a submanifold

Published on 14 Apr 2026 - 5:05

1.6k

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Several statements about $\mathbb{R}$ with chart defined by $f(x)=x^3$

Published on 24 Apr 2026 - 1:17

330

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Tubular neighborhood by restricting the Riemannian exponential map

Published on 24 Apr 2026 - 1:18

241

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What is the dimension of the space of planes in $\Bbb R^3$?

Published on 25 Mar 2026 - 19:06

842

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Hermitian metric on $L=\mathcal{O}_{\mathbb{P^n}}(1)$ over the projective space

Published on 16 Apr 2026 - 10:19

3.1k

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Homeomorphic manifolds have the same dimension

Published on 16 Apr 2026 - 7:06

498

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What is the Euclidean topology on $\mathbb{R}^0$ like?

Published on 13 Apr 2026 - 0:42

83

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Determining if an equation represents (?) a Riemann surface

Published on 11 Apr 2026 - 23:52

398

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Confused (disoriented?) by questions about orientation

Published on 08 Apr 2026 - 16:13

811

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Transitive Lie group actions and surjectivity of maps

Published on 13 Apr 2026 - 16:54

533

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Smooth map $S^1 \to S^2$ can not be surjective

Published on 15 Apr 2026 - 22:14

125

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Are $X=M \times [0,T]$ and $\partial X$ smooth compact manifolds when $M$ is smooth compact Riemannian manifold?

Published on 15 Apr 2026 - 13:23

1.2k

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Action of the fundamental group

Published on 14 Apr 2026 - 11:50

207

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Isotopy: Definition

Published on 09 Apr 2026 - 13:15

List Question

Jacobi fields and variations

A closed set is not a submanifold

Several statements about $\mathbb{R}$ with chart defined by $f(x)=x^3$

Tubular neighborhood by restricting the Riemannian exponential map

What is the dimension of the space of planes in $\Bbb R^3$?

Hermitian metric on $L=\mathcal{O}_{\mathbb{P^n}}(1)$ over the projective space

Homeomorphic manifolds have the same dimension

What is the Euclidean topology on $\mathbb{R}^0$ like?

Determining if an equation represents (?) a Riemann surface

Confused (disoriented?) by questions about orientation

Transitive Lie group actions and surjectivity of maps

Smooth map $S^1 \to S^2$ can not be surjective

Are $X=M \times [0,T]$ and $\partial X$ smooth compact manifolds when $M$ is smooth compact Riemannian manifold?

Action of the fundamental group

Isotopy: Definition

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