Characterizing a vertex-transitive graph by a large ball
60 mins,
230.13 MB,
iPod Video
480x270,
29.97 fps,
44100 Hz,
523.67 kbits/sec
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About this item
| Description: |
de la Salle, M (ENS - Lyon, CNRS (Centre national de la recherche scientifique))
Monday 8th May 2017 - 16:00 to 17:00 |
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| Created: | 2017-05-10 15:39 |
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| Collection: | Non-Positive Curvature Group Actions and Cohomology |
| Publisher: | Isaac Newton Institute |
| Copyright: | de la Salle, M |
| Language: | eng (English) |
| Distribution: |
World
(downloadable)
|
| Explicit content: | No |
| Aspect Ratio: | 16:9 |
| Screencast: | No |
| Bumper: | UCS Default |
| Trailer: | UCS Default |
| Abstract: | The subject of the talk will be vertex-transitive infinite connected graphs with bounded degree and with a property of large scale simple connectedness. The most classical examples of such objects are Cayley graphs of finitely presented groups, but I will explain that there are (uncountably) many other, and I will study some topological questions on the space of all such graphs. In particular I will give some answers to a question of Benjamini and Georgakopoulos asking which Cayley graphs are isolated. Based on joint works with Romain Tessera. |
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| MPEG-4 Video | 640x360 | 1.94 Mbits/sec | 876.56 MB | View | Download | |
| WebM | 640x360 | 859.37 kbits/sec | 377.66 MB | View | Download | |
| iPod Video * | 480x270 | 523.67 kbits/sec | 230.13 MB | View | Download | |
| MP3 | 44100 Hz | 250.78 kbits/sec | 110.21 MB | Listen | Download | |
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