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OpenAI reports: Weak inhomogeneous Duffin–Schaeffer approximation

OpenAI reports that divergence of the totient-weighted approximation sum gives infinitely many successful shifted approximations for almost every real number, for each fixed real shift and arbitrary finite-valued tolerances.

Sources for this record

What was already known

The shifted approximation problem fixes a real shift and asks for an almost-everywhere divergence criterion. Removing restrictions on that shift is separate from the homogeneous problem.

What changed and why it matters

Resolves the weak inhomogeneous divergence target for every fixed shift, including irrational shifts.

The AI contribution

OpenAI attributes these manuscripts to its internal model. The entry does not infer individual human contributions beyond that publisher attribution.

Limitations

Numerators are unrestricted rather than required coprime. This is the weak inhomogeneous divergence statement, not a convergence converse or a quantitative counting asymptotic. Preprint. This is a source-statement and significance assessment, not a proof audit. No independent checking or successful formal compilation is asserted by this entry.

Verification evidence

Evidence labels show what supports the claim. Importance rates its impact if correct.

Author claim

The publisher reports the scoped result. AIProofWatch has not independently validated its correctness.

Accessible artifact / proof

The original written argument is accessible. Availability does not establish a successful proof check or Lean verification.

Correction and publication history

2026-10-11 · publication

Historical report added after statement, scope, and importance review. No proof audit or formal checking asserted; subscriber alerts disabled.

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