Sebastian Hensel

activity

20242026

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3 papers · 1 filter

math.GT2024

A big mapping class acting parabolically on the nonseparating curve graph

Federica Fanoni, Sebastian Hensel

We use fine curve graph tools to prove that there exist parabolic isometries of graphs of curves associated to surfaces of infinite type.

math.GT2024

Submanifold projections and hyperbolicity in $Out (F_{n})$

Ursula Hamenstädt, Sebastian Hensel

The free splitting graph of a free group $F_{n}$ with $n \geq 2$ generators is a hyperbolic $Out (F_{n})$ -graph which has a geometric realization as a sphere graph in the connected…

math.GT2024

Towards the boundary of the fine curve graph

Jonathan Bowden, Sebastian Hensel, Richard Webb

The fine curve graph was introduced as a geometric tool to study homeomorphisms of surfaces. In this paper we study the Gromov boundary of this space and the local topology near po…

A big mapping class acting parabolically on the nonseparating curve graph

Submanifold projections and hyperbolicity in Out(Fn​)

Towards the boundary of the fine curve graph

Submanifold projections and hyperbolicity in $Out (F_{n})$