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.
References
Primary source
Ernie Croot and Chi Hoi Yip, “A weighted entropy approach for the quadratic inverse large sieve conjecture”, arXiv:2607.15311 (2026).
Progress summary
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Solutions 1
RemarkAI-assistedClaimed by OpenAI. The manuscript claims Ostmann's inverse Goldbach conjecture: no finite modification of the primes is A+B for nonnegative integer sets A and B each containing at least two elements. This includes the positive-integer formulation on this page.See full solution
Claimed by OpenAI.
The manuscript claims Ostmann's inverse Goldbach conjecture: no finite modification of the primes is A+B for nonnegative integer sets A and B each containing at least two elements. This includes the positive-integer formulation on this page.
GitHub repository: https://github.com/openai/math
- OpenAI-013-01-The-additive-indecomposability-of-the-primes.pdfOpen