VibeMathedMath problems solved with AI

The stable Morse number as a lower bound for nondegenerate Hamiltonian fixed points

The stable Morse number SM(W)\mathrm{SM}(W) of a closed manifold is the least number of critical points of a Morse function F:W×Rk→RF:W\times\mathbb R^k\to\mathbb R equal to a nondegenerate quadratic form outside a compact set (k≥0k\ge0 varying); SM(W)≤Morse(W)\mathrm{SM}(W)\le\mathrm{Morse}(W). Dimitroglou Rizell and Golovko proved #Fix0≥SM(M)\#\mathrm{Fix}_0\ge\mathrm{SM}(M) for nondegenerate Hamiltonians when [ω][\omega] and c1c_1 vanish on π2(M)\pi_2(M). Does the stable Morse bound #Fix0(ϕH1;H)≥SM(M)\#\mathrm{Fix}_0(\phi_H^1;H)\ge\mathrm{SM}(M) hold for every nondegenerate Hamiltonian diffeomorphism of every closed symplectic manifold?

Result
Disproved(see note)
Status
Candidate (review pending)
AI contribution
AI-discovered
Method
Construction
Field
Symplectic topology; Hamiltonian fixed points, stable Morse theory
Posed by
Recorded as Conjecture 1.2 in R. Golovko, On variants of Arnold conjecture, Arch. Math. (Brno) 56 (2020); background in Arnold (1986)
Year posed
2020
Years open
6y
Solved
2026-10-05
Model
Unreleased internal OpenAI model
Vendor
OpenAI
Collaborators
—
Verification
Contested
Publication
Announced
Collection
OpenAI math release (October 2026), version adc7f12
Significance
30 / 100
Disclosed cost
—
Wikipedia
No dedicated article

What was actually shown

Principal Theorem 1.1: a simply connected closed Kahler MM (dim⁡R=1412\dim_{\mathbb R}=1412, SM=318968\mathrm{SM}=318968) and a Hamiltonian with all 318952 fixed points nondegenerate and contractible. Mechanism: a Hamiltonian involution on X×YX\times Y whose fixed components carry Smale-minimal Morse functions, with mixed 2- and 3-primary torsion making 4λ(C)<λ(M)4\lambda(C)<\lambda(M); no Floer theory. Companions: in real dimension 22 the deficit is unbounded with ratio ≤127/128\le127/128; in dimension 3332 the count attains the cyclic integral Floer bound of Bai-Xu yet is 32 below SM\mathrm{SM}. Since SM≤Morse\mathrm{SM}\le\mathrm{Morse} these also refute the Morse-number form in the simply connected setting. The homological bounds remain intact.

What the AI did

The release README says all results were produced by an unreleased internal OpenAI model with a fixed procedure, on average about three hours of ChatGPT Pro thinking compute per result. This result is not among the README's exceptions (the Hodge conjecture for CM abelian varieties and the Re(s) > 11/12 zero-free region). The manuscript is authored 'OpenAI' and names no human author.

Verification

No independent mathematician has checked this yet. Checked here: Theorem 1.1 of the principal paper was read against Golovko's Conjecture 1.2; it claims a simply connected closed Kahler manifold of real dimension 1412 with a nondegenerate Hamiltonian having SM(M)−16\mathrm{SM}(M)-16 fixed points. The companions claim a dimension-22 family with #Fix≤(1−1/128)SM\#\mathrm{Fix}\le(1-1/128)\mathrm{SM} and a dimension-3332 example attaining the cyclic integral Floer bound. Proofs not refereed; not formalized. Graded contested because Ma's 2013 preprint claims nondegenerate fixed points are always at least the ordinary Morse number, which is at least the stable Morse number; the stable-Morse papers themselves do not cite Ma.

Claim issue

The release says: 'Ma [Theorem 1.5] asserted that the minimum number of fixed points over all Hamiltonian diffeomorphisms always equals Crit(M). Theorem 1.1 contradicts that assertion' (degenerate paper) and 'Ma's preprint asserts that the minimum number of fixed points of a nondegenerate Hamiltonian diffeomorphism always equals the ordinary Morse number ... Theorem 1.1 contradicts that unrestricted assertion' (Morse-number paper). The other side: R. Ma, Proofs on Arnold conjectures, arXiv 0808.0613v7 (2013), Theorem 1.5, claims these lower bounds hold in general. Ma's preprint is unpublished; no referee has ruled between them. The stable-Morse papers do not cite Ma; the conflict is by implication, since Morse(M) >= SM(M).

Sources

Changelog1 change

Discussion