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Mathematics
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davidivadful
  • Member for 10 years
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question
7
An open set of $ \mathbb{R}^2$ without a point is not simply connected
Jun 9, 2017
question
4
Hessian does not depend of the curve we choice.
Jul 26, 2017
question
4
Find Levi-Civita Connection in Hyperbolic Space
Jan 6, 2019
question
2
A continuous and injective map $f: \mathbb{S}^2 \rightarrow \mathbb{S}^2$ is a homeomorphism
May 28, 2017
question
2
Relationship between Ricci and Scalar curvatures in 2 dimentions
Aug 17, 2017
question
2
Show that $\mathbb{S}^{n+m}$ is not homeomorphic to a product of orientable manifolds
Dec 4, 2018
question
2
Prove that a quadratic form is harmonic if and only if its integral over a sphere is $0$.
Mar 28, 2019
question
2
Study the behaviour of a differential equation
May 6, 2021
question
2
Prove that the following limit depending on $\alpha$ is $0$
May 22, 2021
question
1
If $X$ is path-connected and has a finite fundamental group then every covering map from $X$ to $X$ is an homeomorphism.
May 28, 2017