2 papers
math.GT2025
Asymptotically CAT(0) metrics, Z-structures, and the Farrell-Jones Conjecture
Matthew Gentry Durham, Yair Minsky, Alessandro Sisto
We show that colorable hierarchically hyperbolic groups (HHGs) admit asymptotically CAT(0) metrics, that is, roughly, metrics where the CAT(0) inequality holds up to sublinear erro…
math.GR2025
On uniqueness of coarse median structures
Elia Fioravanti, Alessandro Sisto
We show that any product of bushy hyperbolic spaces has a unique coarse median structure, and that having a unique coarse median structure is a property closed under relative hyper…