COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > DPMMS Presentations > The structure of approximate Abelian groups

## The structure of approximate Abelian groupsAdd to your list(s) Download to your calendar using vCal - Tom Sanders (Oxford)
- Tuesday 05 February 2013, 14:00-15:00
- CMS, MR11.
If you have a question about this talk, please contact Julia Blackwell. In this talk we shall look at the structure of sets that partially satisfy the axioms of an Abelian group. Specifically, we shall look at sets $A$ for which the proportion of triples $x,y,z \in A$ having $x+y-z \in A$ is at least $\delta$. (If $\delta =1$ then such sets are genuine cosets; for smaller $\delta$ we think of them as partial cosets.) A description of these sets is given by Freiman’s theorem, and our goal is to cover some recent improvements in this result. The talk is intended to be accessible, and will cover examples as well as what Freiman’s theorem is and why it is important.’ This talk is part of the DPMMS Presentations series. ## This talk is included in these lists:- All CMS events
- All Talks (aka the CURE list)
- CMS Events
- CMS, MR11
- DPMMS Lists
- DPMMS Presentations
- DPMMS info aggregator
- School of Physical Sciences
Note that ex-directory lists are not shown. |
## Other listsMajor Public Lectures in Cambridge Hughes Hall Hats Off Club Seminars Discrete Analysis Seminar## Other talksChaos in biology: Experiments, implications and mathematical tools Cardiovascular Development: Insights into Regeneration Coins and currency in the crusader states Crick Lecture 2014: How Aneuploidy Drives Cancer Representing microbial communities in Earth system models Dr Thijn Brummelkamp, Netherlands Cancer Institute (Cellular Medicine Series) Title TBC Host: Paul Lehner |