OpenAI reports termination of generalized log canonical Kähler fourfold flips

Every sequence of generalized log canonical flips on a normal globally Weil Q-factorial compact Kähler fourfold terminates when each flip is a projective small diagram with the stated opposite ample signs, rational boundary, and one fixed nef Q-Cartier b-divisor on a projective modification.

Sources for this record

What was already known

Terminal fourfold flip termination was known in the algebraic setting. Prior generalized-pair results covered pseudo-effective algebraic fourfold cases with NQC nef data; a Kähler termination conjecture had been formulated (manuscript introduction, pp. 1–2).

AI involvement AI-led

OpenAI credits itself as manuscript author and states that its internal frontier model produced the results in this release. Individual human input is not detailed enough to establish task-only autonomy.

OpenAI is named as author on the manuscript, and its release attributes the results to an internal frontier model. The individual human input is not detailed enough to establish autonomy.

Importance Notable

Extends termination to specified generalized log canonical flip sequences on compact Kähler fourfolds without a pseudo-effectivity or scaling assumption.

Limitations

The theorem concerns sequences of already existing projective small flips and imposes rationality and global Weil Q-factoriality. It does not establish existence of all contractions or flips.

Technical verification Reported

Reported is the default when evidence for a higher level is insufficient. The OpenAI-authored manuscript reports and argues the result, but the reviewed sources do not document a completed check of the full assessed claim.

Human understanding Few

Few is the default when evidence for a higher level is insufficient. No named person is documented as explaining the central argument for this assessed contribution.

Correction and publication history

2026-10-18 · publication

Primary manuscript, attribution, and prior-work review for non-notifying local inclusion.

Read this published revision