Approximate groups: introduction, recent results and applications
Event details
| Date | 20.04.2011 |
| Hour | 17:15 |
| Speaker | Emmanuel Breuillard |
| Location | |
| Category | Conferences - Seminars |
The study of approximate groups, that is finite subsets of a group that are ''almost closed'' under multiplication, and their rough classification has developed rapidly in the past few years mostly driven by applications to expander graphs in computer science and sieve theory in arithmetic. A shift in perspective occurred a couple of years ago when this mostly combinatorial question was recast in the framework of model theory by E. Hrushovski who obtained, among other things, a classification of approximate subgroups of GL_n. In the talk I will present these developments and their subsequent quantitative refinements.
Based on a joint work with Ben Green and Terence Tao.
Links
Practical information
- General public
- Free
Contact
- Isabelle Derivaz-Rabii