Hyperbolic groups with boundary an n-dimensional Sierpinski space

49 mins 5 secs,  89.79 MB,  MP3  44100 Hz,  249.77 kbits/sec
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Description: Lafont, J
Thursday 22nd June 2017 - 14:30 to 15:30
 
Created: 2017-07-19 15:15
Collection: Non-Positive Curvature Group Actions and Cohomology
Publisher: Isaac Newton Institute
Copyright: Lafont, J
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
Screencast: No
Bumper: UCS Default
Trailer: UCS Default
 
Abstract: Let G be a torsion-free Gromov hyperbolic group, whose boundary at infinity is an n-dimensional Sierpinski space. I'll explain why, if n>4, the group G is in fact the fundamental group of a (unique) aspherical (n+2)-manifold with non-empty boundary. Time permitting, various related results will also be discussed. This is joint work with Bena Tshishiku.
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