List questions from general-topology

Published on 25 Mar 2026 - 1:16

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Why we can assume compactness in Victor Klee's theorem?

Published on 27 Mar 2026 - 15:17

160

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Two connected non homeomorphic spaces on $\mathbb{R}$ with continuous and bijective $f,g$

Published on 12 Mar 2018 - 14:03

113

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Precision on the Baire property

Published on 20 Mar 2026 - 5:37

240

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Prove that $\overline{A}\subset\overline{B}$

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Prove that $\overline{C}$ and $D$ are disjoint

Published on 12 Mar 2018 - 17:09

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Prove $\mathbb{R} ^n$ is contractible for any $n \geq 1.$

Published on 12 Mar 2018 - 18:19

70

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The complete invariance property

Published on 27 Mar 2026 - 4:25

69

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some confusion in order square.

Published on 12 Mar 2018 - 23:29

50

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What is the ball associated with a certain metric?

Published on 13 Mar 2018 - 0:54

138

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Why torus space we could see it in $\mathbb R^3$

Published on 28 Mar 2026 - 5:57

498

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$R^n$ satisfies the second axiom of countability

Published on 13 Mar 2018 - 3:14

68

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Prove $\bigcap_{n\in\mathbb N}[n,\infty)\ne\varnothing$

Published on 13 Mar 2018 - 5:36

165

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Prove that the infinite intersection of $R_n = [0,\frac{1}{n}] \times [0,\frac{1}{2n}]$ equals $(0,0)$

Published on 13 Mar 2018 - 6:18

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Find the group of Deck transformation?

Published on 25 Mar 2026 - 6:10

List Question

How to find $4$-tuple parametric representation of Möbius strip?

Why we can assume compactness in Victor Klee's theorem?

Two connected non homeomorphic spaces on $\mathbb{R}$ with continuous and bijective $f,g$

Precision on the Baire property

Prove that $\overline{A}\subset\overline{B}$

Prove that $\overline{C}$ and $D$ are disjoint

Prove $\mathbb{R} ^n$ is contractible for any $n \geq 1.$

The complete invariance property

some confusion in order square.

What is the ball associated with a certain metric?

Why torus space we could see it in $\mathbb R^3$

$R^n$ satisfies the second axiom of countability

Prove $\bigcap_{n\in\mathbb N}[n,\infty)\ne\varnothing$

Prove that the infinite intersection of $R_n = [0,\frac{1}{n}] \times [0,\frac{1}{2n}]$ equals $(0,0)$

Find the group of Deck transformation?

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