List questions from general-topology

Published on 14 Apr 2026 - 0:42

320

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Constructible set in a Zariski space that contains all closed points

Published on 15 Apr 2026 - 5:26

55

Views

Bounded metrics beyond the bound

Published on 15 Apr 2026 - 13:28

518

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Book reference for topology: Can I avoid filters?

Published on 14 Apr 2026 - 2:26

216

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The Baire space as an automorphism group?

Published on 20 Apr 2026 - 15:27

62

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Topological "filters" and convolutions, are they related or is it just a coincidence of name choice?

Published on 16 Apr 2026 - 3:40

72

Views

Let $C$ be compact sets. $\bigcap_{i \in K} (C_i)=\emptyset \Rightarrow \exists F \subseteq K \; \text {finite} | \bigcap_{i \in F} (C_i) = \emptyset$

Published on 15 Apr 2026 - 5:35

1k

Views

Are Hausdorff spaces the only topological spaces in which limits are unique

Published on 08 Apr 2026 - 22:29

132

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Can a probability measure with connected and compact support be realized as the pushforward of the uniform?

Published on 20 Apr 2026 - 8:16

103

Views

Simplest Unhalvable Shape

Published on 15 Apr 2026 - 21:46

50

Views

How i can show that this set is compact?

Published on 13 Apr 2026 - 19:41

121

Views

Probability Measure for $X=Y$

Published on 12 Apr 2026 - 21:11

650

Views

is the function from $\mathbb{R}$ to $S^1$ open or closed?

Published on 11 Apr 2026 - 3:05

1k

Views

is a set E=[0..1] U {10} both open and closed according to Rudin's definition?

Published on 12 Apr 2026 - 6:56

54

Views

$[0,\infty)_{l}$ and $R_{l}$ are homeomorphics

Published on 16 Apr 2026 - 7:18

List Question

Compactness of a metric space

Constructible set in a Zariski space that contains all closed points

Bounded metrics beyond the bound

Book reference for topology: Can I avoid filters?

The Baire space as an automorphism group?

Topological "filters" and convolutions, are they related or is it just a coincidence of name choice?

Let $C$ be compact sets. $\bigcap_{i \in K} (C_i)=\emptyset \Rightarrow \exists F \subseteq K \; \text {finite} | \bigcap_{i \in F} (C_i) = \emptyset$

Are Hausdorff spaces the only topological spaces in which limits are unique

Can a probability measure with connected and compact support be realized as the pushforward of the uniform?

Simplest Unhalvable Shape

How i can show that this set is compact?

Probability Measure for $X=Y$

is the function from $\mathbb{R}$ to $S^1$ open or closed?

is a set E=[0..1] U {10} both open and closed according to Rudin's definition?

$[0,\infty)_{l}$ and $R_{l}$ are homeomorphics

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