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Department of Applied Mathematics and Theoretical Physics

A quasiflat in a metric space is a quasiisometric embedding of R^n. In situations that are "thick enough", such as buildings, many right-angled Artin groups, and mapping class groups, understanding the structure of quasiflats is an important ingredient in establishing rigidity results for quasiisometries. Conversely, quasiflats can also be used to show that some groups are "too thick" to be, say, cocompactly cubulated.
 
In this talk I will discuss ongoing work with Thomas Haettel and Nima Hoda, in which we prove a quasiflats theorem for the class of hyperconvex (or injective) metric spaces

Further information

Time:

22Oct
Oct 22nd 2025
15:00 to 16:00

Venue:

Seminar Room 2, Newton Institute

Speaker:

Harry Petyt (University of Oxford)

Series:

Isaac Newton Institute Seminar Series