2105.11133
BEYOND 0 AND ∞: A SOLUTION TO THE BARGE ENTROPY CONJECTURE
J. P. Boroński, J. Činč, P. Oprocha
correcthigh confidence
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- Not specified
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- Top Field-Leading
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- Sep 28, 2025, 12:56 AM
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Audit review
The uploaded paper proves Theorem 1.1: for every r in [0,∞] there exists a pseudo-arc homeomorphism Hr with htop(Hr)=r, via an inverse-limit-of-pseudo-arcs construction and an adaptation of the Denjoy–Rees technique; the proof implants a strictly ergodic Bernoulli model with entropy r and uses variational principles to conclude htop=r . It also explains why earlier inverse-limit/natural-extension approaches cannot yield finite nonzero entropy on the pseudo-arc (results of Block–Keesling–Uspenskij and Mouron) . By contrast, the model’s solution asserts an almost one-to-one principal extension from a β-shift to a pseudo-arc obtained as an inverse limit of arcs, but provides no construction or justification; this runs counter to the obstacles summarized in the paper and does not match the paper’s method .
Referee report (LaTeX)
\textbf{Recommendation:} minor revisions
\textbf{Journal Tier:} top field-leading
\textbf{Justification:}
This work settles Barge’s 1989 entropy question for the pseudo-arc. The authors develop an odometer-based zero-entropy template on an inverse limit of pseudo-arcs and adapt the Denjoy–Rees technique to implant prescribed measure-theoretic complexity. The argument is intricate but coherent. Minor expository enhancements would further improve accessibility.