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Volume 20
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10.3390/e20120987
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Article

Uniform Convergence of Cesaro Averages for Uniquely Ergodic C*-Dynamical Systems

by
Francesco Fidaleo
Dipartimento di Matematica, Università di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Roma, Italy
Entropy 2018, 20(12), 987; https://doi.org/10.3390/e20120987
Submission received: 20 November 2018 / Revised: 9 December 2018 / Accepted: 11 December 2018 / Published: 19 December 2018
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Abstract

Consider a uniquely ergodic C * -dynamical system based on a unital *-endomorphism Φ of a C * -algebra. We prove the uniform convergence of Cesaro averages 1 n ∑ k = 0 n − 1 λ − n Φ ( a ) for all values λ in the unit circle, which are not eigenvalues corresponding to “measurable non-continuous” eigenfunctions. This result generalizes an analogous one, known in commutative ergodic theory, which turns out to be a combination of the Wiener–Wintner theorem and the uniformly convergent ergodic theorem of Krylov and Bogolioubov.
Keywords: ergodic theorems; C*-dynamical systems ergodic theorems; C*-dynamical systems

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MDPI and ACS Style

Fidaleo, F. Uniform Convergence of Cesaro Averages for Uniquely Ergodic C*-Dynamical Systems. Entropy 2018, 20, 987. https://doi.org/10.3390/e20120987

AMA Style

Fidaleo F. Uniform Convergence of Cesaro Averages for Uniquely Ergodic C*-Dynamical Systems. Entropy. 2018; 20(12):987. https://doi.org/10.3390/e20120987

Chicago/Turabian Style

Fidaleo, Francesco. 2018. "Uniform Convergence of Cesaro Averages for Uniquely Ergodic C*-Dynamical Systems" Entropy 20, no. 12: 987. https://doi.org/10.3390/e20120987

APA Style

Fidaleo, F. (2018). Uniform Convergence of Cesaro Averages for Uniquely Ergodic C*-Dynamical Systems. Entropy, 20(12), 987. https://doi.org/10.3390/e20120987

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