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OpenAI reports: Milne’s rationality conjecture

OpenAI reports that rational Hodge classes on abelian varieties with good reduction pair rationally with complementary divisor products on the reduction, compatibly across prime-to-p and crystalline realizations, including residue characteristic two.

Sources for this record

What was already known

Compatible cohomological realizations alone do not establish rational intersection numbers with new divisor classes arising after reduction. Milne’s conjecture asks for that additional rationality.

What changed and why it matters

Resolves the stated rationality problem across residue characteristics, beyond compatibility of realizations.

The AI contribution

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

Limitations

The statement concerns good reduction. The algebraic-cycle specialization conclusion invokes the separate CM Hodge theorem; this is not a proof of the unrestricted Hodge conjecture. 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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