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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 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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On generic rotationless diffeomorphisms of the annulus
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by Salvador Addas-Zanata and Fábio Armando Tal PDF
Proc. Amer. Math. Soc. 138 (2010), 1023-1031 Request permission

Abstract:

Let $f$ be a $C^r$-diffeomorphism of the closed annulus $A$ that preserves the orientation, the boundary components and the Lebesgue measure. Suppose that $f$ has a lift $\tilde f$ to the infinite strip $\tilde A$ which has zero Lebesgue measure rotation number. If the rotation number of $\tilde f$ restricted to both boundary components of $A$ is positive, then for such a generic $f$ ($r\geq 16$), zero is an interior point of its rotation set. This is a partial solution to a conjecture of P. Boyland.
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Additional Information
  • Salvador Addas-Zanata
  • Affiliation: Instituto de Matemática e Estatística, Universidade de São Paulo, Rua do Matão 1010, Cidade Universitária, 05508-090 São Paulo, SP, Brazil
  • Email: sazanata@ime.usp.br
  • Fábio Armando Tal
  • Affiliation: Instituto de Matemática e Estatística, Universidade de São Paulo, Rua do Matão 1010, Cidade Universitária, 05508-090 São Paulo, SP, Brazil
  • MR Author ID: 653938
  • Email: fabiotal@ime.usp.br
  • Received by editor(s): May 14, 2009
  • Received by editor(s) in revised form: July 22, 2009
  • Published electronically: October 26, 2009
  • Additional Notes: The first author was supported by CNPq grant 301485/03-8
    The second author was supported by CNPq grant 304360/05-8
  • Communicated by: Bryna Kra
  • © Copyright 2009 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Proc. Amer. Math. Soc. 138 (2010), 1023-1031
  • MSC (2010): Primary 37E30, 37E45; Secondary 37C20, 37C05
  • DOI: https://doi.org/10.1090/S0002-9939-09-10135-1
  • MathSciNet review: 2566568