Seminar series
Date
Wed, 06 Feb 2019
16:00
16:00
Location
C1
Speaker
Elia Fioravanti
Organisation
Oxford University
I will give a self-contained introduction to the theory of cross ratios on boundaries of Gromov hyperbolic and CAT(-1) spaces, focussing on the connections to the following two questions. When are two spaces with the 'same' Gromov boundary isometric/quasi-isometric? Are closed Riemannian manifolds completely determined (up to isometry) by the lengths of their closed geodesics?