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SUMMARY:On sumsets of convex sets - József Solymosi (University of Britis
 h Columbia)
DTSTART:20110127T150000Z
DTEND:20110127T160000Z
UID:TALK29369@talks.cam.ac.uk
CONTACT:Andrew Thomason
DESCRIPTION:A set of real numbers\, a_1 < a_2 < ... < a_n\, is said to be 
 convex if the gap between the numbers is increasing. (a_{i+2}-a_{i+1} > a_
 i-a_{i-1} for any 1 < i  < n-1) \n\nWe will show that if a set of real num
 bers\, A\, is convex then its sumset is always large\, |A+A|>|A|^{3/2+\\de
 lta} holds for some universal constant \\delta>0.\n\nJoint work with Endre
  Szemerédi\n
LOCATION:MR12
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