Expansion properties of linear groups
Duration: 53 mins 5 secs
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About this item
| Description: |
Salehi Golsefidy, A (University of California, San Diego)
Monday 30 June 2014, 13:30-14:20 |
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| Created: | 2014-07-11 16:33 |
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| Collection: | Interactions between Dynamics of Group Actions and Number Theory |
| Publisher: | Isaac Newton Institute |
| Copyright: | Salehi Golsefidy, A |
| Language: | eng (English) |
| Distribution: |
World
(downloadable)
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| Explicit content: | No |
| Aspect Ratio: | 16:9 |
| Screencast: | No |
| Bumper: | UCS Default |
| Trailer: | UCS Default |
| Abstract: | Starting with finitely many matrices S in GL(n,Q), we will discuss when the Cayley graphs of congruence quotients of the group generated by S modulo a sequence of integers can form a family of expanders. Then we will focus on the case of powers of primes and show that such a property is dictated by the Zariski-topology. |
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