Question

Do almost all permutations of the interval have dense graphs?

score 45 · Answer 1 · 2026-03-29 04:48:05

45

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Do almost all permutations of the interval have dense graphs?

Published on 29 Mar 2026 - 4:48

score 395 · Answer 2 · 2018-05-14 09:40:13

395

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Does $A$ open, non-empty, $\frac {A+A} 2=A+1$ imply $A=\mathbb R$?

Published on 14 May 2018 - 9:40

score 1.4k · Answer 3 · 2026-03-26 10:46:16

1.4k

Views

Topology for GRE: Munkres vs Royden and Fitzpatrick?

Published on 26 Mar 2026 - 10:46

score 376 · Answer 4 · 2026-03-26 06:34:22

376

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Difference between topology of pointwise convergence, weak and weak$^*$ topologies

Published on 26 Mar 2026 - 6:34

score 137 · Answer 5 · 2026-03-31 04:00:14

If $A$ and $B$ are bounded simply connected open subsets of $\mathbb{R}^2$ then a connected component $C$ of $A\cap B$ is simply connected?

score 1.7k · Answer 6 · 2026-03-31 23:54:50

1.7k

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Proving that the closure of a connected set in a metric space is connected.

Published on 31 Mar 2026 - 23:54

score 189 · Answer 7 · 2026-03-25 07:42:08

189

Views

Is a countable product locally convex?

Published on 25 Mar 2026 - 7:42

score 307 · Answer 8 · 2026-03-25 09:59:35

307

Views

ultrafilter convergence versus non-standard topology

Published on 25 Mar 2026 - 9:59

score 214 · Answer 9 · 2026-03-24 22:08:47

214

Views

Prime filters extending principal filters on the Heyting algebra generated by a preorder

Published on 24 Mar 2026 - 22:08

score 24 · Answer 10 · 2026-03-28 08:29:58

24

Views

How can we show that $\left\{x\in\mathbb R^d:d(x,\Lambda^c)>\varepsilon\right\}\subseteq\Lambda$, if $\Lambda\subseteq\mathbb R^d$ is a domain?

Published on 28 Mar 2026 - 8:29

score 178 · Answer 11 · 2026-04-02 13:32:24

178

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Prove that a closed ball is an open set in ultrametric space

Published on 02 Apr 2026 - 13:32

score 85 · Answer 12 · 2018-05-15 02:26:15

85

Views

Well definition of measure on measurable spaces

Published on 15 May 2018 - 2:26

score 165 · Answer 13 · 2026-03-25 00:01:03

165

Views

Separating closed sets by clopen sets in $\omega_1$.

Published on 25 Mar 2026 - 0:01

score 495 · Answer 14 · 2018-05-15 05:37:16

495

Views

find Number of connected components of $Y$?

Published on 15 May 2018 - 5:37

score 1.9k · Answer 15 · 2026-03-26 06:32:51

1.9k

Views

Differentiable atlas for infinite Mobius strip

Published on 26 Mar 2026 - 6:32

List Question

Do almost all permutations of the interval have dense graphs?

Does $A$ open, non-empty, $\frac {A+A} 2=A+1$ imply $A=\mathbb R$?

Topology for GRE: Munkres vs Royden and Fitzpatrick?

Difference between topology of pointwise convergence, weak and weak$^*$ topologies

If $A$ and $B$ are bounded simply connected open subsets of $\mathbb{R}^2$ then a connected component $C$ of $A\cap B$ is simply connected?

Proving that the closure of a connected set in a metric space is connected.

Is a countable product locally convex?

ultrafilter convergence versus non-standard topology

Prime filters extending principal filters on the Heyting algebra generated by a preorder

How can we show that $\left\{x\in\mathbb R^d:d(x,\Lambda^c)>\varepsilon\right\}\subseteq\Lambda$, if $\Lambda\subseteq\mathbb R^d$ is a domain?

Prove that a closed ball is an open set in ultrametric space

Well definition of measure on measurable spaces

Separating closed sets by clopen sets in $\omega_1$.

find Number of connected components of $Y$?

Differentiable atlas for infinite Mobius strip

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