34 citations · 145 across the 31 of their papers we have counts for
4 papers · 1 filter
Finite covers of graphs, their primitive homology, and representation theory
Benson Farb, Sebastian Hensel
Consider a finite, regular cover of finite graphs, with associated deck group . We relate the topology of the cover to the structure of as a -rep…
Rigidity and Flexibility for Handlebody Groups
Sebastian Hensel
We show that finite index subgroups of the handlebody group are rigid in their ambient mapping class group: any injective map of a finite index subgroup of the genus handlebody…
Exponential Torsion Growth for Random 3-Manifolds
Hyungryul Baik, David Bauer, Ilya Gekhtman +5
We show that a random 3-manifold with positive first Betti number admits a tower of cyclic covers with exponential torsion growth.
Nielsen Realisation by Gluing: Limit Groups and Free Products
Sebastian Hensel, Dawid Kielak
We generalise the Karrass-Pietrowski-Solitar and the Nielsen realisation theorems from the setting of free groups to that of free products. As a result, we obtain a fixed point the…