Random graphs and applications to Coxeter groups
50 mins 45 secs,
92.84 MB,
MP3
44100 Hz,
249.77 kbits/sec
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About this item
Description: |
Behrstock, J (City University of New York)
Wednesday 11th January 2017 - 11:30 to 12:30 |
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Created: | 2017-01-27 10:30 |
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Collection: | Non-Positive Curvature Group Actions and Cohomology |
Publisher: | Isaac Newton Institute |
Copyright: | Behrstock, J |
Language: | eng (English) |
Distribution: | World (downloadable) |
Explicit content: | No |
Aspect Ratio: | 16:9 |
Screencast: | No |
Bumper: | UCS Default |
Trailer: | UCS Default |
Abstract: | Erdos and Renyi introduced a model for studying random graphs of a given "density" and proved that there is a sharp threshold at which lower density random graphs are disconnected and higher density ones are connected. We will explain some new threshold theorems for random graphs and focus in particular on applications to geometric group theory: these concern divergence functions, which provide quantifications of non-positive curvature. Some of this talk will be on joint work with Hagen and Sisto; other parts are joint work with Hagen, Susse, and Falgas-Ravry. |
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MP3 * | 44100 Hz | 249.77 kbits/sec | 92.84 MB | Listen | Download | |
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