List questions from geometric-group-theory

Published on 10 May 2026 - 18:43

553

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Topology of a free group

Published on 11 Apr 2026 - 19:56

361

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Is a HNN extension of a virtually torsion-free group virtually torsion-free?

Published on 10 May 2026 - 18:44

512

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Why coarse maps have to be proper?

Published on 09 Apr 2026 - 16:28

131

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Reference Request for Small Cancellation Theory

Published on 10 May 2026 - 18:41

191

Views

Dynamical systems from an algebraic perspective

Published on 10 May 2026 - 17:58

481

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Groups containing finite index subgroups isomorphic to $\mathbb{Z}$

Published on 16 Apr 2026 - 10:10

347

Views

Symmetry Group of a Complete Graph

Published on 14 Apr 2026 - 12:57

141

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Surjective map $H \to A \ast_C B$ means $H$ is an amalgamated free product

Published on 13 Apr 2026 - 5:55

63

Views

Asymptotic order and growth rates of groups

Published on 11 Apr 2026 - 11:07

257

Views

Geometric realisations of trees are Cat(0)

Published on 16 Apr 2026 - 13:27

51

Views

Finding a path $p_n$ in a hyperbolic, 1-ended group joining points that stays within $B(e,n+2\delta+2)-B(e,n)$ except at endpoints

Published on 15 Apr 2026 - 22:39

352

Views

$\mathbb{Z}^2 \ast \mathbb{Z}^2$ is isomorphic to no finite index proper subgroup of itself

Published on 12 Apr 2026 - 15:27

283

Views

Different statements of the ping pong lemma

Published on 14 Apr 2026 - 20:36

371

Views

Every Vertex Bijection Induces a Graph Isomorphism/Symmetry

Published on 16 Apr 2026 - 15:43

List Question

Finding generators of a group from its action on a topological space

Topology of a free group

Is a HNN extension of a virtually torsion-free group virtually torsion-free?

Why coarse maps have to be proper?

Reference Request for Small Cancellation Theory

Dynamical systems from an algebraic perspective

Groups containing finite index subgroups isomorphic to $\mathbb{Z}$

Symmetry Group of a Complete Graph

Surjective map $H \to A \ast_C B$ means $H$ is an amalgamated free product

Asymptotic order and growth rates of groups

Geometric realisations of trees are Cat(0)

Finding a path $p_n$ in a hyperbolic, 1-ended group joining points that stays within $B(e,n+2\delta+2)-B(e,n)$ except at endpoints

$\mathbb{Z}^2 \ast \mathbb{Z}^2$ is isomorphic to no finite index proper subgroup of itself

Different statements of the ping pong lemma

Every Vertex Bijection Induces a Graph Isomorphism/Symmetry

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