On uniqueness of coarse median structures

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 hyperbolicity. As a consequence, in contrast with the case of mapping class groups, there are nonhyperbolic pants graphs that have unique coarse median structures.

Authors

Publication Details

Journal
KITopen
Published
2026-09-17
DOI
https://doi.org/10.5445/ir/1000197051
Primary Topic
Geometric and Algebraic Topology
Type
article
Field-Weighted Citation Impact
0.00
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article

On uniqueness of coarse median structures

Elia Fioravanti, Alessandro Sisto
KITopen
Geometric and Algebraic Topology
article

On uniqueness of coarse median structures

Elia Fioravanti, Alessandro Sisto
article en

Abstract

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 hyperbolicity. As a consequence, in contrast with the case of mapping class groups, there are nonhyperbolic pants graphs that have unique coarse median structures.

KITopen
Openalex Percentile: Top 5%
Geometric and Algebraic Topology
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On uniqueness of coarse median structures — Elia Fioravanti, Alessandro Sisto · KITopen (2026) | TGRS Research Map | TGRS