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20082026
most citedOrderings and flexibility of some subgroups of

7 citations · 12 across the 11 of their papers we have counts for

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math.GR2026

Groups with classifiable actions on the line

Joaquín Brum, Martín Gilabert Vio, Nicolás Matte Bon

We motivate and study the class of countable groups such that the conjugacy relation between minimal actions of on by orientation-preserving home…

math.GR2023

A realisation result for moduli spaces of group actions on the line

Joaquín Brum, Nicolás Matte Bon, Cristóbal Rivas +1

Given a finitely generated group , the possible actions of on the real line (without global fixed points), considered up to semi-conjugacy, can be encoded by the space of or…

math.GR2022★ 1 cited

Solvable Groups and Affine Actions on the Line

Joaquín Brum, Nicolás Matte Bon, Cristóbal Rivas +1

We prove a structural result for orientation-preserving actions of finitely generated solvable groups on real intervals, considered up to semi-conjugacy. As applications we obtain…

math.GR2021

Locally moving groups and laminar actions on the line

Joaquín Brum, Nicolás Matte Bon, Cristóbal Rivas +1

We prove various results that, given a sufficiently rich subgroup of the group of homeomorphisms on the real line, describe the structure of the other possible actions of o…

math.GR2020★ 1 cited

On the geometry of positive cones in finitely generated groups

J. Alonso, Y. Antolín, J. Brum +1

We study the geometry of positive cones of left-invariant total orders (left-order, for short) in finitely generated groups. We introduce the \textit{Hucha property} and the \texit…

math.GR2017

Spaces of orders of some one-relator groups

Juan Alonso, Joaquin Brum

We show that certain orderable groups admit no isolated left orders. The groups we consider are cyclic amalgamations of a free group with a general orderable group, the HNN extensi…