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Toeplitz flows with pure point spectrum

A. Iwanik (1996)

Studia Mathematica

We construct strictly ergodic 0-1 Toeplitz flows with pure point spectrum and irrational eigenvalues. It is also shown that the property of being regular is not a measure-theoretic invariant for strictly ergodic Toeplitz flows.

Topological Pressure for One-Dimensional Holomorphic Dynamical Systems

Katrin Gelfert, Christian Wolf (2007)

Bulletin of the Polish Academy of Sciences. Mathematics

For a class of one-dimensional holomorphic maps f of the Riemann sphere we prove that for a wide class of potentials φ the topological pressure is entirely determined by the values of φ on the repelling periodic points of f. This is a version of a classical result of Bowen for hyperbolic diffeomorphisms in the holomorphic non-uniformly hyperbolic setting.

Type III 0 cocycles without unbounded gaps

Toshihiro Hamachi (1995)

Commentationes Mathematicae Universitatis Carolinae

An example of type III 0 cocycle without unbounded gaps of an ergodic probability measure preserving transformation will be shown.

Une nouvelle propriété des suites de Rudin-Shapiro

Martine Queffelec (1987)

Annales de l'institut Fourier

Les suites de Rudin-Shapiro ont des propriétés extrémales en analyse harmonique. En remarquant qu’une telle suite est reconnaissable par un automate fini, nous en décrivons explicitement le spectre (type spectral maximal, multiplicité spectrale fonction multiplicité). Nous établissons par exemple, que la suite de Rudin-Shapiro généralisée à l’ordre q contient dans son spectre une composante de Lebesgue, de multiplicité q φ ( q ) .

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