Are geodesic metric spaces determined by their Morse boundaries?

Duration: 1 hour 5 mins
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Description: Charney, R (Brandeis University)
Tuesday 30th May 2017 - 11:00 to 12:00
 
Created: 2017-06-22 13:56
Collection: Non-Positive Curvature Group Actions and Cohomology
Publisher: Isaac Newton Institute
Copyright: Charney, R
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
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Bumper: UCS Default
Trailer: UCS Default
 
Abstract: Boundaries of hyperbolic spaces have played a key role in low dimensional topology and geometric group theory. In 1993, Paulin showed that the topology of the boundary of a hyperbolic space, together with its quasi-mobius structure, determines the space up to quasi-isometry. One can define an analogous boundary, called the Morse boundary, for any proper geodesic metric space. I will discuss an analogue of Paulin’s theorem for Morse boundaries of CAT(0) spaces. (Joint work with Devin Murray)
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