Back to search
2112.06090

Equidistribution of mass for random processes on finite-volume spaces

Timothée Bénard

correctmedium confidence
Category
Not specified
Journal tier
Specialist/Solid
Processed
Sep 28, 2025, 12:56 AM

Audit review

The paper proves equidistribution without Cesàro averaging under finite first moment, aperiodicity, and an overlap-of-powers condition, by combining Benoist–Quint orbit-closure classification and Cesàro equidistribution with a Foguel-type lemma and an aperiodicity-based permutation argument. The candidate solution follows the same route. The only notable inaccuracy is an overstatement that every subsequential weak-* limit is μ-stationary; the paper (via Foguel) yields μ^d-stationarity for limits along arithmetic progressions of step d, and continuity then propagates μ^d-stationarity to cluster points of the full sequence. This does not affect the final conclusion.

Referee report (LaTeX)

\textbf{Recommendation:} minor revisions

\textbf{Journal Tier:} specialist/solid

\textbf{Justification:}

The note cleanly upgrades Cesàro equidistribution to full convergence under natural overlap-of-powers and aperiodicity assumptions, leveraging strong existing structure theorems. The argument is concise and appears correct. Minor clarifications around the precise stationarity of cluster points and the final reduction from step-d convergence to full convergence would further aid readers.