List questions from geometric-group-theory

Published on 25 Mar 2026 - 11:04

216

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Presentations of discrete subgroups of $\textrm{PGL}_2(\mathbb{R})$

Published on 25 Mar 2026 - 8:09

91

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Proper action of $\mathrm{SL}(2,\mathbb{R})$ by isometries on a Hilbert space

Published on 16 Jul 2019 - 14:30

262

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1-ended Cayley graphs

Published on 25 Mar 2026 - 17:29

291

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Normal closure in Baumslag-Solitar group

Published on 25 Mar 2026 - 13:54

401

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Program to find intersection of subgroups of free groups

Published on 25 Mar 2026 - 1:30

78

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Realizing probability measure preserving actions as isometric actions

Published on 25 Mar 2026 - 20:34

306

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Examples of Hyperbolic Groups

Published on 19 Mar 2026 - 15:59

500

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Word metric on a finitely generated subgroup versus the word metric of its finitely generated parent

Published on 25 Mar 2026 - 15:52

165

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Dehn twist in amalgamated product, preserving a subgroup

Published on 25 Mar 2026 - 14:33

294

Views

Amenable groups: From fixed point property to invariant mean.

Published on 23 Feb 2026 - 2:08

237

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Why does one consider the boundary of trees?

Published on 23 Sep 2019 - 16:56

165

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What fraction of finitely presented groups have unsolvable word problem?

Published on 25 Sep 2019 - 4:37

83

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PGL(2,F) acting on a tree

Published on 29 Sep 2019 - 14:41

178

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The stability group of the action of fuchsian group on the upper half plane of is finite?

Published on 01 Oct 2019 - 12:42

List Question

Dense projections of lattices in $G\times\textrm{Aut}(T)$

Presentations of discrete subgroups of $\textrm{PGL}_2(\mathbb{R})$

Proper action of $\mathrm{SL}(2,\mathbb{R})$ by isometries on a Hilbert space

1-ended Cayley graphs

Normal closure in Baumslag-Solitar group

Program to find intersection of subgroups of free groups

Realizing probability measure preserving actions as isometric actions

Examples of Hyperbolic Groups

Word metric on a finitely generated subgroup versus the word metric of its finitely generated parent

Dehn twist in amalgamated product, preserving a subgroup

Amenable groups: From fixed point property to invariant mean.

Why does one consider the boundary of trees?

What fraction of finitely presented groups have unsolvable word problem?

PGL(2,F) acting on a tree

The stability group of the action of fuchsian group on the upper half plane of is finite?

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