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

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹī¸ Information

The structure of approximate Abelian groups

Download to your calendar using vCal

  • UserTom Sanders (Oxford)
  • ClockTuesday 05 February 2013, 14:00-15:00
  • HouseCMS, MR11.

If you have a question about this talk, please contact HoD Secretary, DPMMS .

This talk has been canceled/deleted

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 Special DPMMS Colloquium series.

This talk is included in these lists:

  • This talk is not included in any other list

Note that ex-directory lists are not shown.

Other lists

Webinar - https://cassyni.com/s/fmws The Arthur Goodhart Lecture Theatre (LG19), Faculty of Law PublicHealth@Cambridge

Other talks

John Kendrew Lecture - Title TBC Haematology and Palliative Care Title to be confirmed Afternoon Break Welfare Reform and the Imperative of Cooperation Group Work
 

Š 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity