collaborators

3 papers

math.GT2025

Virtual homological torsion: abundance versus growth in books of -bundles

Jonathan Fruchter

Let be a book of -bundles, all of whose pages are surfaces of negative Euler characteristic. In this short note, we prove that torsion in the first homology of $\m…

math.GR2025

Homological torsion growth in non-normal chains of graphs of free groups

Dario Ascari, Jonathan Fruchter

Let be a hyperbolic group that splits as a graph of free groups with cyclic edge groups, and which is not isomorphic to a free product of free and surface groups. We show that…

math.GR2025

Virtual homological torsion in graphs of free groups with cyclic edge groups

Dario Ascari, Jonathan Fruchter

Let be a hyperbolic group that splits as a graph of free groups with cyclic edge groups. We prove that, unless is isomorphic to a free product of free and surface groups, e…