ULethbridge - Number Theory and Combinatorics Seminar: Nima Hoda

  • Date: 10/27/2021
  • Time: 11:00
Nima Hoda, École Normale Supérieure

University of Lethbridge


Shortcut Graphs and Groups


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.

Other Information: 

Event held in-person and online at 11:00am MT 


In-person Location: SA 6006


Zoom link and password available from the organizers:
Bobby.Miraftab@uleth.ca or



If possible, please write from a verifiable university email address, and not at the last minute.



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