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SUMMARY:On the structure of infinite sumsets in the integers - Florian Ric
 hter (EPFL)
DTSTART:20260318T133000Z
DTEND:20260318T143000Z
UID:TALK242038@talks.cam.ac.uk
CONTACT:Julia Wolf
DESCRIPTION:A long-standing problem in combinatorial number theory\, posed
  by Erdős and Graham\, asks for a classification of all integer subsets A
  and B for which d(A+B)=d(A)+d(B)\, where d(.) denotes the natural density
  in the integers. We will discuss the history and motivation of this probl
 em\, its connections to ergodic theory\, as well as recent progress toward
  its resolution. This talk is based on joint work with Ethan Ackelsberg.
LOCATION:MR4\, CMS
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