Ostmann's inverse Goldbach conjecture
Ostmann's inverse Goldbach conjecture
Let denote the set of all primes. For sets of positive integers, define to mean that their symmetric difference is finite. Ostmann's inverse Goldbach conjecture. There do not exist sets of positive integers, each with at least two elements, such that
This is the inverse form of the Goldbach problem: it asks whether the primes can be, up to finitely many exceptions, represented as the sumset of two nontrivial sets. The source presents it as an important motivation for the paired inverse large sieve conjecture; its resolution status is not specified in the supplied text.
Sources & referencesView supporting material
Primary source
Ernie Croot and Chi Hoi Yip, “A weighted entropy approach for the quadratic inverse large sieve conjecture”, arXiv:2607.15311 (2026).
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