Polytope invariants of groups and manifolds
1 hour 3 mins,
917.98 MB,
MPEG-4 Video
640x360,
29.97 fps,
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Description: |
Friedl, S (Universität Regensburg, Universität Regensburg)
Monday 30th January 2017 - 10:00 to 11:00 |
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Created: | 2017-02-10 10:00 |
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Collection: | Homology theories in low dimensional topology |
Publisher: | Isaac Newton Institute |
Copyright: | Friedl, S |
Language: | eng (English) |
Distribution: | World (downloadable) |
Explicit content: | No |
Aspect Ratio: | 16:9 |
Screencast: | No |
Bumper: | UCS Default |
Trailer: | UCS Default |
Abstract: | Co-authors: Wolfgang L\"uck (University of Bonn), Kevin Schreve (University of Michigan), Stephan Tillmann (University of Sydney)
We will associate to L^2-acyclic groups and manifolds, modulo some not overly restrictive technical hypothesis, a formal difference of polytopes. We will relate it to the Thurston norm and compute it if the fundamental group has a 2-generator 1-relator presentation |
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