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2506.05178

Associative Memory and Generative Diffusion in the Zero-noise Limit

Joshua Hess, Quaid Morris

correctmedium confidence
Category
math.DS
Journal tier
Strong Field
Processed
Sep 28, 2025, 12:56 AM

Audit review

The paper’s four main claims (i)–(iv) about zero-noise limits for gradient flows, structural/topological stability, generic bifurcations in one- and two-parameter families, and probabilistic tracking by small-noise diffusions are stated correctly and largely supported by standard results. However, parts of the exposition (notably the proof of Proposition 9 and the corollary on stochastic stability) conflate general small random perturbations with gradient diffusions and rely on Boltzmann–Gibbs structure without making this restriction explicit. The model’s solution proves the same targets with a different, more robust route (invariance plus Lyapunov monotonicity and stable-manifold arguments), and flags the needed regularity/closure conditions for pushforwards. Hence both reach the correct conclusions; the paper would benefit from clarifying assumptions, but the core statements stand.

Referee report (LaTeX)

\textbf{Recommendation:} minor revisions

\textbf{Journal Tier:} strong field

\textbf{Justification:}

The manuscript accurately synthesizes classical results on gradient flows, zero-noise limits, and bifurcations to frame associative memory and diffusion models within a coherent global picture. The main conclusions are correct and valuable. Some proofs (notably Proposition 9 and the stochastic stability corollary) should either clarify the perturbation class or use arguments that don’t depend on Boltzmann–Gibbs structure; the discussion of pushforwards should tie absolute continuity to explicit regularity/closure conditions. These are modest, clarifying revisions rather than conceptual changes.