activity
20202026
most citedCoarse injectivity, hierarchical hyperbolicity, and semihyperbolicity

17 citations · 17 across the 6 of their papers we have counts for

collaborators

7 papers

math.GR2026

Quasiisometric embeddings between right-angled Artin groups: flexibility

Shaked Bader, Oussama Bensaid, Harry Petyt

We give a complete characterisation of when the right-angled Artin group on one cycle graph can be quasiisometrically embedded in the right-angled Artin group on another cycle grap…

math.GR2026

Quasiisometric embeddings between right-angled Artin groups: rigidity

Shaked Bader, Oussama Bensaid, Harry Petyt

We prove a range of rigidity results for quasiisometric embeddings between right-angled Artin groups. Among other things, we: (1) classify all self--quasiisometric-embeddings of RA…

math.GR2026

From branching quasiflats to flats in CAT(0) cube complexes

Shaked Bader, Oussama Bensaid, Harry Petyt

We study quasiisometric embeddings between finite-dimensional CAT(0) cube complexes. More specifically, we introduce geometric branching conditions under which flats in the domain,…

math.GR2023

GAGTA 2023 Problem Session

Henry Bradford, Christopher H. Cashen, Francesco Fournier-Facio +2

The conference `Geometric and Asymptotic Group Theory with Applications (GAGTA) 2023: Groups and Dynamics' took place at the Erwin Schrödinger Institute on July 17-21. These are th…

math.GR2023

metrics on cell complexes

Thomas Haettel, Nima Hoda, Harry Petyt

Motivated by the observation that groups can be effectively studied using metric spaces modelled on , , and geometry, we consider cell complexes equip…

math.MG2021

Mapping class groups are quasicubical

Harry Petyt

It is proved that the mapping class group of any closed surface with finitely many marked points is quasiisometric to a CAT(0) cube complex. We provide two distinct proofs, one tai…

math.GR2020★ 17 cited

Coarse injectivity, hierarchical hyperbolicity, and semihyperbolicity

Thomas Haettel, Nima Hoda, Harry Petyt

We relate three classes of nonpositively curved metric spaces: hierarchically hyperbolic spaces, coarsely injective spaces, and strongly shortcut spaces. We show that every hierarc…