BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Matrix coefficients of finite groups - Ben Green\, University of O
 xford
DTSTART:20181114T134500Z
DTEND:20181114T144500Z
UID:TALK114058@talks.cam.ac.uk
CONTACT:Aled Walker
DESCRIPTION:Let G be a finite group\, and let f be a d-dimensional unitary
  representation of G. Let v be a d-dimensional complex unit vector. We sho
 w that there is another unit vector w such that the inner product of f(g) 
 v and w is O((log d)^-1/2^)\, uniformly for all g in G. Geometrically (a r
 eal version of this) states that ``finite transitive subsets of the d-dime
 nsional sphere have width O((log d)^-1/2^)"\, or in other words they are "
 almost flat".
LOCATION:MR5\, CMS\, Wilberforce Road\, Cambridge\, CB3 0WB
END:VEVENT
END:VCALENDAR