3 papers
math.DS2026
Approximating stable translation lengths on fine curve graphs
Federica Fanoni, Sebastian Hensel, Frédéric Le Roux
We study the stable translation length of homeomorphisms of a surface acting on the fine nonseparating curve graph and compare it to the stable translation lengths of its finite ap…
math.GR2025
Rotation sets and axes in the fine curve graph for torus homeomorphisms
Sebastian Hensel, Frédéric Le Roux
We expand the dictionary between the action of a torus homeomorphism on the fine curve graph and its rotation set. More precisely, we show that the fixed points at infinity of a lo…
math.GR2025
Problems on handlebody groups
Naomi Andrew, Sebastian Hensel, Sam Hughes +1
We survey a number of constructions and open problems related to the handlebody group, with a focus on recent trends in geometric group theory, (co)homological properties, and its…