activity
20142026
most citedHyperbolicité du graphe des rayons et quasi-morphismes sur un gros groupe modulaire

32 citations · 67 across the 7 of their papers we have counts for

collaborators

9 papers

math.DS2026

Entropy and Translation Length in the Ray Graph

Juliette Bavard, Danny Calegari, Alden Walker

Let be the mapping class group of the plane minus a Cantor set, acting on the ray graph , and for let denote the translation length of on $\mat…

math.GT2021★ 2 cited

An infinite clique of high-filling rays in the plane minus a Cantor set

Juliette Bavard

The study of the mapping class group of the plane minus a Cantor set uses a graph of loops, which is an analogous of the curve graph in the study of mapping class groups of compact…

math.GT2018

Two simultaneous actions of big mapping class groups

Juliette Bavard, Alden Walker

We study two actions of big mapping class groups. The first is an action by isometries on a Gromov-hyperbolic graph. The second is an action by homeomorphisms on a circle in which…

math.GT2018★ 32 cited

Gromov-Hyperbolicity of the ray graph and quasimorphisms on a big mapping class group

Juliette Bavard

These notes are the English version of the paper "Hyperbolicité du graphe des rayons et quasi-morphismes sur un gros groupe modulaire". The mapping class group Gamma of the complem…

math.GR2017

Isomorphisms between big mapping class groups

Juliette Bavard, Spencer Dowdall, Kasra Rafi

We show that any isomorphism between mapping class groups of orientable infinite-type surfaces is induced by a homeomorphism between the surfaces. Our argument additionally applies…

math.GT2016

The Gromov boundary of the ray graph

Juliette Bavard, Alden Walker

The ray graph is a Gromov hyperbolic graph on which the mapping class group of the plane minus a Cantor set acts by isometries. We give a description of the Gromov boundary of the…

math.GR2015

Big mapping class groups are not acylindrically hyperbolic

Juliette Bavard, Anthony Genevois

We give a criterion to prove that some groups are not acylindrically hyperbolic. As an application, we prove that the mapping class group of an infinite type surface is not acylind…

math.DS2015★ 1 cited

Conjugacy invariants for Brouwer mapping classes

Juliette Bavard

We give new tools for homotopy Brouwer theory. In particular, we describe a canonical reducing set (the set of "walls") which splits the plane into maximal translation areas and ir…

math.DS2014★ 32 cited

Hyperbolicité du graphe des rayons et quasi-morphismes sur un gros groupe modulaire

Juliette Bavard

The mapping class group of the complement of a Cantor set in the plane arises naturally in dynamics. We show that the ray graph, which is the analog of the complex of curves fo…