Topology·OpenAI Math·Result 306

The purely cosmetic surgery conjecture

One of the 372 results in OpenAI's public mathematics catalogue, filed under topology: 1 preprint, the latest dated 23 September 2026. This page quotes OpenAI's own summary of the claim, links the paper and abstract, and embeds the animation.

In one line: OpenAI reports a proof of the purely cosmetic surgery conjecture (topology) in a preprint dated 23 September 2026. It has not been peer reviewed. The channel's animation, Every OpenAI Math Result, Part 3 of 4: Operator Paving, Naimark's Problem and 82 More, is on YouTube.

Compilation · 29:20 · 14 October 2026 · from 4:12Watch on YouTube →

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Chapter 13 of 84 in Every OpenAI Math Result, Part 3 of 4: Operator Paving, Naimark's Problem and 82 More · starts at 4:12 · watch from there on YouTube →

What OpenAI claims

Distinct Dehn surgery slopes on a nontrivial smooth knot in S3 never produce orientation-preservingly homeomorphic manifolds, proving the purely cosmetic surgery conjecture. The statement includes the meridional slope.

Paper

  1. Purely cosmetic surgery on knots in the three-sphere

    · Preprint, not peer reviewed · PDF

    OpenAI's abstract We prove the purely cosmetic surgery conjecture for knots in the three-sphere. Distinct Dehn surgery slopes on a nontrivial smooth knot never give orientation-preservingly homeomorphic manifolds.

Status

Preprint. The paper has not been independently reviewed. Treat the result as OpenAI's claim until other mathematicians have checked it. If a video exists, it illustrates the statement; it is not the proof.

Quick answers

Is it proven?
Not independently yet. OpenAI posted a preprint on 23 September 2026; it has not been peer reviewed, so treat the result as OpenAI's claim until other mathematicians have checked it.
What exactly does OpenAI claim?
Distinct Dehn surgery slopes on a nontrivial smooth knot in S3 never produce orientation-preservingly homeomorphic manifolds, proving the purely cosmetic surgery conjecture. The statement includes the meridional slope.
Where is the proof?
In the paper, Purely cosmetic surgery on knots in the three-sphere (PDF).
Is there a video?
Yes, on YouTube (29:20, chapter 13).

Also in

The video

Every OpenAI Math Result, Part 3 of 4: Operator Paving, Naimark's Problem and 82 More · Compilation · 29:20 · chapter 13 from 4:12 · description, sources and chapters →

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