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Shortcut graphs and groups

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Virtualconference
Authors : Hoda, Nima (Author of the conference)
CIRM (Publisher )

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Abstract : Shortcut graphs are graphs in which long enough cycles cannot embed without metric distortion. Shortcut groups are groups which act properly and cocompactly on shortcut graphs. These notions unify a surprisingly broad family of graphs and groups of interest in geometric group theory and metric graph theory including: systolic and quadric groups (in particular finitely presented C(6) and C(4)-T(4) small cancellation groups), cocompactly cubulated groups, hyperbolic groups, Coxeter groups and the Baumslag-Solitar group BS(1,2). Most of these examples satisfy a strong form of the shortcut property. I will discuss some of these examples as well as some general constructions and properties of shortcut graphs and groups.

Keywords : nonpositive curvature; filling invariant; hyperbolic group; CAT(0) cube complex; median graph; systolic complex;
bridged graph; quadric complex; hereditary modular graph; Coxeter group; Baumslag-Solitar group

MSC Codes :
05C12 - Distance in graphs
20F65 - Geometric group theory
20F67 - Hyperbolic groups and nonpositively curved groups

Additional resources :
https://conferences.cirm-math.fr/uploads/1/6/6/4/16648158/short.pdf

    Information on the Video

    Film maker : Hennenfent, Guillaume
    Language : English
    Available date : 01/06/2020
    Conference Date : 22/05/2020
    Subseries : Research talks
    arXiv category : Group Theory
    Mathematical Area(s) : Algebra ; Combinatorics ; Geometry ; Topology
    Format : MP4 (.mp4) - HD
    Video Time : 00:29:20
    Targeted Audience : Researchers
    Download : https://videos.cirm-math.fr/2020-05-22_Hoda.mp4

Information on the Event

Event Title : Virtual Geometric Group Theory conference / Rencontre virtuelle en géométrie des groupes
Event Organizers : Chatterji, Indira ; Paris, Luis ; Vogtmann, Karen
Dates : 01/06/2020 - 05/06/2020
Event Year : 2020
Event URL : https://conferences.cirm-math.fr/virtual...

Citation Data

DOI : 10.24350/CIRM.V.19636103
Cite this video as: Hoda, Nima (2020). Shortcut graphs and groups. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.19636103
URI : http://dx.doi.org/10.24350/CIRM.V.19636103

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