Characterizing a vertex-transitive graph by a large ball
60 mins,
377.66 MB,
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640x360,
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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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WebM * | 640x360 | 859.37 kbits/sec | 377.66 MB | View | Download | |
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