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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2024 MCQ for Proceedings of the American Mathematical Society is 0.85.

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A positive proportion Livshits theorem
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by Caleb Dilsavor and James Marshall Reber;
Proc. Amer. Math. Soc. 152 (2024), 4729-4744
DOI: https://doi.org/10.1090/proc/16880
Published electronically: September 24, 2024

Abstract:

Given a transitive Anosov diffeomorphism or flow on a closed connected Riemannian manifold $M$, the Livshits theorem states that a Hölder function $\varphi : M \to \mathbb {R}$ is a coboundary if all of its periods vanish. We explain how a finer statistical understanding of the distribution of these periods can be used to obtain a stronger version of the classical Livshits theorem where one only has to check that the periods of $\varphi$ vanish on a set of positive asymptotic upper density. We also include a strengthening of the nonpositive Livshits theorem.
References
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Bibliographic Information
  • Caleb Dilsavor
  • Affiliation: Departmnet of Mathematics, The Ohio State University, 231 West 18$^{\text {th}}$ Avenue, Columbus, Ohio 43210
  • ORCID: 0000-0003-2724-4876
  • Email: dilsavor.4@osu.edu
  • James Marshall Reber
  • Affiliation: Departmnet of Mathematics, The Ohio State University, 231 West 18$^{\text {th}}$ Avenue, Columbus, Ohio 43210
  • MR Author ID: 1596797
  • ORCID: 0009-0003-4553-9077
  • Email: marshallreber.1@osu.edu
  • Received by editor(s): May 18, 2023
  • Received by editor(s) in revised form: February 1, 2024, and March 26, 2024
  • Published electronically: September 24, 2024
  • Additional Notes: This work was partially supported by NSF grants DMS-$1954463$ and DMS-$1955564$.
  • Communicated by: Katrin Gelfert
  • © Copyright 2024 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 152 (2024), 4729-4744
  • MSC (2020): Primary 37D20, 37C35, 37D35
  • DOI: https://doi.org/10.1090/proc/16880
  • MathSciNet review: 4802626