Question

Are 3-sheeted covers of figure 8 homotopy equivalent to each other?

score 910 · Answer 1 · 2026-03-25 02:54:20

910

Views

Are 3-sheeted covers of figure 8 homotopy equivalent to each other?

Published on 25 Mar 2026 - 2:54

score 135 · Answer 2 · 2026-03-25 07:49:05

135

Views

Show that $\mathbb{Z} = \langle a, b \mid a^{12} = b,\ ab = ba \rangle$ has dead end elements

Published on 25 Mar 2026 - 7:49

score 312 · Answer 3 · 2026-03-25 15:42:59

312

Views

Which 3-manifolds can be cubulated?

Published on 25 Mar 2026 - 15:42

score 274 · Answer 4 · 2026-03-24 23:48:07

274

Views

Request for applications of the Filling Theorem: geometric and algebraic Dehn functions are asymptotically equivalent

Published on 24 Mar 2026 - 23:48

score 134 · Answer 5 · 2026-03-25 09:09:56

134

Views

Newman's "proof" that surface groups are LERF?

Published on 25 Mar 2026 - 9:09

score 208 · Answer 6 · 2026-03-25 09:37:32

208

Views

Finite Presentation of a subgroup

Published on 25 Mar 2026 - 9:37

score 471 · Answer 7 · 2026-03-25 09:03:15

471

Views

Is the infinite regular tree $T_\infty$ quasi-isometric to the $n$-regular tree $T_n$?

Published on 25 Mar 2026 - 9:03

score 202 · Answer 8 · 2026-03-25 05:06:49

202

Views

Word length vs hyperbolic length of curves on a hyperbolic surface

Published on 25 Mar 2026 - 5:06

score 717 · Answer 9 · 2026-03-24 20:29:05

717

Views

Is there any relationship between growth rate and amenability?

Published on 24 Mar 2026 - 20:29

score 81 · Answer 10 · 2026-03-24 22:55:48

81

Views

Characterization or examples of metric spaces with this property

Published on 24 Mar 2026 - 22:55

score 183 · Answer 11 · 2026-03-24 06:14:46

183

Views

How to characterize the group of homeomorphisms of unit disk in terms of the group of homeomorphisms of plane?

Published on 24 Mar 2026 - 6:14

score 69 · Answer 12 · 2026-03-25 15:55:14

69

Views

Example of a homeomorphism of a plane which fixes unit circle point wise

Published on 25 Mar 2026 - 15:55

score 112 · Answer 13 · 2026-03-24 23:44:28

112

Views

Group theoretic finiteness properties stronger than linearity or weaker than Hopficity?

Published on 24 Mar 2026 - 23:44

score 56 · Answer 14 · 2026-03-24 21:37:17

56

Views

Infinite, finitely generated subgroup of a group of homeomorphisms of closed unit disc

Published on 24 Mar 2026 - 21:37

score 238 · Answer 15 · 2026-03-24 23:42:51

238

Views

Finite subgroup of a group of homeomorphisms of closed unit disc

Published on 24 Mar 2026 - 23:42

List Question

Are 3-sheeted covers of figure 8 homotopy equivalent to each other?

Show that $\mathbb{Z} = \langle a, b \mid a^{12} = b,\ ab = ba \rangle$ has dead end elements

Which 3-manifolds can be cubulated?

Request for applications of the Filling Theorem: geometric and algebraic Dehn functions are asymptotically equivalent

Newman's "proof" that surface groups are LERF?

Finite Presentation of a subgroup

Is the infinite regular tree $T_\infty$ quasi-isometric to the $n$-regular tree $T_n$?

Word length vs hyperbolic length of curves on a hyperbolic surface

Is there any relationship between growth rate and amenability?

Characterization or examples of metric spaces with this property

How to characterize the group of homeomorphisms of unit disk in terms of the group of homeomorphisms of plane?

Example of a homeomorphism of a plane which fixes unit circle point wise

Group theoretic finiteness properties stronger than linearity or weaker than Hopficity?

Infinite, finitely generated subgroup of a group of homeomorphisms of closed unit disc

Finite subgroup of a group of homeomorphisms of closed unit disc

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