English

New Bounds on cap sets

Classical Analysis and ODEs 2011-04-05 v2 Combinatorics Number Theory

Abstract

We provide an improvement over Meshulam's bound on cap sets in F3NF_3^N. We show that there exist universal ϵ>0\epsilon>0 and C>0C>0 so that any cap set in F3NF_3^N has size at most C3NN1+ϵC {3^N \over N^{1+\epsilon}}. We do this by obtaining quite strong information about the additive combinatorial properties of the large spectrum.

Keywords

Cite

@article{arxiv.1101.5851,
  title  = {New Bounds on cap sets},
  author = {Michael Bateman and Nets Hawk Katz},
  journal= {arXiv preprint arXiv:1101.5851},
  year   = {2011}
}

Comments

New version: The most substantive change is the correction of our overstatement of the efficacy of the asymmetric Balog-Szemeredi-Gowers lemma. (Thanks to Izabella Laba and Olof Sisask for pointing this out.) 38 pages

R2 v1 2026-06-21T17:19:05.157Z