Question

Topological shape of the color spectrum

score 180 · Answer 1 · 2018-06-07 18:47:56

180

Views

Topological shape of the color spectrum

Published on 07 Jun 2018 - 18:47

score 161 · Answer 2 · 2018-06-08 11:53:05

161

Views

If the closure of each $\mathcal{R}$-saturated set is also $\mathcal{R}$-saturated, is then $\mathcal{R}$ an open relation (projection is open)?

Published on 08 Jun 2018 - 11:53

score 580 · Answer 3 · 2018-06-09 11:03:19

580

Views

kernel of quotient is quotient of kernel?

Published on 09 Jun 2018 - 11:03

score 771 · Answer 4 · 2018-06-12 11:39:02

771

Views

Topology of $S^2 \times S^2 \setminus Diagonal = S^2 \times S^2 \setminus \{ (x,x): x\in S^2 \} $

Published on 12 Jun 2018 - 11:39

score 151 · Answer 5 · 2018-06-15 01:51:01

151

Views

Uniqueness of passing to the quotient space mapping

Published on 15 Jun 2018 - 1:51

score 346 · Answer 6 · 2026-03-19 10:57:29

346

Views

G-equivariant isomorphism inducing isomorphisms on quotients

Published on 19 Mar 2026 - 10:57

score 321 · Answer 7 · 2018-06-16 18:08:03

321

Views

Equivalence relation on topological space such that each equivalence class and the quotient space is connected

Published on 16 Jun 2018 - 18:08

score 442 · Answer 8 · 2018-06-17 03:41:04

442

Views

Equivalence relation on topological space such that each equivalence class and the quotient space is path connected

Published on 17 Jun 2018 - 3:41

score 578 · Answer 9 · 2026-03-25 02:50:11

578

Views

The continuous image of a First Countable Space need not be First Countable (Willard 16.B.1)

Published on 25 Mar 2026 - 2:50

score 1k · Answer 10 · 2018-06-17 20:57:03

1k

Views

Path connected quotient implies path connected space

Published on 17 Jun 2018 - 20:57

score 59 · Answer 11 · 2026-03-25 01:36:18

59

Views

Consider $\mathbb{R}^3/E$ with $E = \{(x,y,z) \in \mathbb{R}^2 \vert x^2 + y^2 + z^2 \leq 1\}$

Published on 25 Mar 2026 - 1:36

score 168 · Answer 12 · 2018-06-24 05:12:58

168

Views

Understanding geometric realisation of a simplicial set

Published on 24 Jun 2018 - 5:12

score 403 · Answer 13 · 2018-06-24 08:55:14

403

Views

Universal property of quotient group to get epimorphism

Published on 24 Jun 2018 - 8:55

score 209 · Answer 14 · 2026-03-17 16:54:17

209

Views

What is the explicit equivalence relation for an adjunction space $X\cup_f Y$

Published on 17 Mar 2026 - 16:54

score 213 · Answer 15 · 2018-06-26 18:12:54

213

Views

Does identifying opposite points in Euclidean space result in a smooth manifold?

Published on 26 Jun 2018 - 18:12

List Question

Topological shape of the color spectrum

If the closure of each $\mathcal{R}$-saturated set is also $\mathcal{R}$-saturated, is then $\mathcal{R}$ an open relation (projection is open)?

kernel of quotient is quotient of kernel?

Topology of $S^2 \times S^2 \setminus Diagonal = S^2 \times S^2 \setminus \{ (x,x): x\in S^2 \} $

Uniqueness of passing to the quotient space mapping

G-equivariant isomorphism inducing isomorphisms on quotients

Equivalence relation on topological space such that each equivalence class and the quotient space is connected

Equivalence relation on topological space such that each equivalence class and the quotient space is path connected

The continuous image of a First Countable Space need not be First Countable (Willard 16.B.1)

Path connected quotient implies path connected space

Consider $\mathbb{R}^3/E$ with $E = \{(x,y,z) \in \mathbb{R}^2 \vert x^2 + y^2 + z^2 \leq 1\}$

Understanding geometric realisation of a simplicial set

Universal property of quotient group to get epimorphism

What is the explicit equivalence relation for an adjunction space $X\cup_f Y$

Does identifying opposite points in Euclidean space result in a smooth manifold?

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