Question

There is a 1-1 correspondence between branched covers of 3-manifold and covers of the complement of the branching set.

score 42 · Answer 1 · 2020-03-17 17:01:42

42

Views

There is a 1-1 correspondence between branched covers of 3-manifold and covers of the complement of the branching set.

Published on 17 Mar 2020 - 17:01

score 258 · Answer 2 · 2026-03-26 19:20:05

258

Views

Mayer-Vietoris sequence to find first homology for the double cover of complement of trefoil knot

Published on 26 Mar 2026 - 19:20

score 106 · Answer 3 · 2020-03-24 05:25:58

106

Views

Classify, except isomorphism, all covering spaces with 2 sheets over the space $\mathbb{RP}^2 \times \mathbb{RP}^2$

Published on 24 Mar 2020 - 5:25

score 96 · Answer 4 · 2020-03-24 18:27:41

Suppose that $p: X \to B$ is a covering space where $X$ its not necessarily arc-connected. Prove that $p|_{X_0} :X_0 \to B$ is a covering space.

score 233 · Answer 5 · 2020-03-25 01:21:40

233

Views

Classify 3-sheeted covering spaces of $S^1 \times S^1$

Published on 25 Mar 2020 - 1:21

score 106 · Answer 6 · 2020-03-26 18:10:36

106

Views

Construct two examples of covering spaces path connected with 6 sheets over the Torus $T$ that are not isomorphic

Published on 26 Mar 2020 - 18:10

score 235 · Answer 7 · 2020-03-28 11:24:38

235

Views

The fundamental groupoid is an initial groupoid cover

Published on 28 Mar 2020 - 11:24

score 1.4k · Answer 8 · 2020-03-31 11:33:44

1.4k

Views

$\mathbb R^2$ is a covering space of the torus

Published on 31 Mar 2020 - 11:33

score 127 · Answer 9 · 2020-04-04 14:57:14

127

Views

Bijection between classes of maps from $S^n$ to $\tilde{X}$ and $S^n$ to $X$, where $p:\tilde{X} \to X$ is a convering space

Published on 04 Apr 2020 - 14:57

score 329 · Answer 10 · 2020-04-04 20:25:31

329

Views

Classifying the connected covering spaces of $S^1 \lor \mathbb{R} \mathbb{P}^2$

Published on 04 Apr 2020 - 20:25

score 2.7k · Answer 11 · 2020-04-05 09:36:28

2.7k

Views

Homotopy lifting property for covering spaces

Published on 05 Apr 2020 - 9:36

score 540 · Answer 12 · 2020-04-06 22:30:25

540

Views

Universal cover of $(S^1\times S^2)\vee S^1$

Published on 06 Apr 2020 - 22:30

score 265 · Answer 13 · 2026-03-26 16:07:07

265

Views

Branch points of a dihedral Galois branched cover of a complex torus

Published on 26 Mar 2026 - 16:07

score 100 · Answer 14 · 2026-03-25 14:37:37

100

Views

Action of covering involution on Neron-Severi group

Published on 25 Mar 2026 - 14:37

score 148 · Answer 15 · 2020-04-12 16:19:01

148

Views

spin homomorphism $SL_2(\mathbb C)\to O(1,3)_e$

Published on 12 Apr 2020 - 16:19

List Question

There is a 1-1 correspondence between branched covers of 3-manifold and covers of the complement of the branching set.

Mayer-Vietoris sequence to find first homology for the double cover of complement of trefoil knot

Classify, except isomorphism, all covering spaces with 2 sheets over the space $\mathbb{RP}^2 \times \mathbb{RP}^2$

Suppose that $p: X \to B$ is a covering space where $X$ its not necessarily arc-connected. Prove that $p|_{X_0} :X_0 \to B$ is a covering space.

Classify 3-sheeted covering spaces of $S^1 \times S^1$

Construct two examples of covering spaces path connected with 6 sheets over the Torus $T$ that are not isomorphic

The fundamental groupoid is an initial groupoid cover

$\mathbb R^2$ is a covering space of the torus

Bijection between classes of maps from $S^n$ to $\tilde{X}$ and $S^n$ to $X$, where $p:\tilde{X} \to X$ is a convering space

Classifying the connected covering spaces of $S^1 \lor \mathbb{R} \mathbb{P}^2$

Homotopy lifting property for covering spaces

Universal cover of $(S^1\times S^2)\vee S^1$

Branch points of a dihedral Galois branched cover of a complex torus

Action of covering involution on Neron-Severi group

spin homomorphism $SL_2(\mathbb C)\to O(1,3)_e$

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