Moreira's conjecture on sums and products in positive-density sets
Moreira's conjecture on sums and products in positive-density sets
Let have positive density, where its density is
whenever this limit exists. Moreira's conjecture. There exist such that
This is a positive-density sum-product problem in the integers, motivated by analogous results over fields; the supplied text does not state whether the conjecture has been resolved.
Sources & referencesView supporting material
Primary source
Florian K. Richter, “Sums and products in sets of positive density”, arXiv:2507.00515 (2026).
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