2006.11748
Limit theorems for toral translations
Dmitry Dolgopyat, Bassam Fayad
correctmedium confidence
- Category
- Not specified
- Journal tier
- Strong Field
- Processed
- Sep 28, 2025, 12:55 AM
- arXiv Links
- Abstract ↗PDF ↗
Audit review
The survey’s statements (Theorem 10 and Theorem 18) give the normalization r^{(d−1)/2} N^{(d−1)/(2d)} and the explicit limit L_Ω(L,θ,b,b′) in equations (22)–(23), with a proof sketch based on Fourier localization, stationary phase, and equidistribution of expanding translates in the space of lattices . The candidate solution reproduces the overall strategy and the correct limit functional, but it uses the wrong power of N throughout (it claims N^{(d−1)/2} instead of N^{(d−1)/(2d)}), which contradicts the paper’s result. It also asserts L^2-convergence of the lattice series, whereas the paper cites almost-everywhere convergence; the L^2 claim is not justified here. Hence: paper correct; model wrong.
Referee report (LaTeX)
\textbf{Recommendation:} minor revisions
\textbf{Journal Tier:} strong field
\textbf{Justification:}
The survey accurately states the convex-body discrepancy limit theorem, its explicit limit law, and a coherent proof sketch unifying Fourier analysis with homogeneous dynamics. While details are necessarily deferred to the original papers, the exposition is sound and useful to readers. Minor improvements could make the normalization and the role of the frequency window even clearer, and specify convergence modes of the lattice series.