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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Specification on the interval
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by Jérôme Buzzi PDF
Trans. Amer. Math. Soc. 349 (1997), 2737-2754 Request permission

Abstract:

We study the consequences of discontinuities on the specification property for interval maps. After giving a necessary and sufficient condition for a piecewise monotonic, piecewise continuous map to have this property, we show that for a large and natural class of families of such maps (including the $\beta$-transformations), the set of parameters for which the specification property holds, though dense, has zero Lebesgue measure. Thus, regarding the specification property, the general case is at the opposite of the continuous case solved by A.M. Blokh (Russian Math. Surveys 38 (1983), 133–134) (for which we give a proof).
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Additional Information
  • Jérôme Buzzi
  • Affiliation: Université Paris-Sud, Bât. 425, 91405 Orsay, France
  • Address at time of publication: Université de Bourgogne, Lab. de Topologie, B.P. 400, 21011 Dijon Cedex, France
  • Email: jerome.buzzi@u-bourgogne.fr
  • Received by editor(s): September 12, 1995
  • © Copyright 1997 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 349 (1997), 2737-2754
  • MSC (1991): Primary 58F03; Secondary 54H20
  • DOI: https://doi.org/10.1090/S0002-9947-97-01873-4
  • MathSciNet review: 1407484