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A short proof of Erd\H{o}s's $B+C$ conjecture

Dynamical Systems 2026-03-31 v1 Combinatorics Number Theory

Abstract

We give a short proof of the fact that every set of natural numbers with positive upper Banach density contains the sum of two infinite sets. The approach simplifies earlier existing proofs.

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Cite

@article{arxiv.2603.27258,
  title  = {A short proof of Erd\H{o}s's $B+C$ conjecture},
  author = {Bryna Kra and Joel Moreira and Florian K. Richter and Donald Robertson},
  journal= {arXiv preprint arXiv:2603.27258},
  year   = {2026}
}

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8 pages