Siboni, S.:
Lyapunov exponents, KS-entropy and correlation decay in skew product extensions of Bernoulli endomorphisms
Bollettino dell'Unione Matematica Italiana Serie 8 1-B (1998), fasc. n.3, p. 631-638, Unione Matematica Italiana (English)
pdf (227 Kb), djvu (115 Kb). | MR1662341 | Zbl 0913.58035
Sunto
Viene considerata una classe di sistemi dinamici del toro bidimensionale $T^{2}$ . Tali sistemi presentano la forma di un prodotto skew fra l'endomorfismo Bernoulli $B_{p}(x)=px \mod 1$, $p\in \mathbb{Z}\setminus \{-1,0,1\}$, definito sul toro undidimensionale $T^{1}\equiv [0, 1)$ ed una traslazione del toro stesso. Si dimostra che gli esponenti di Liapunov e l'entropia di Kolmogorov-Sinai della misura di Haar invariante possono essere calcolati esplicitamente. Viene infine discusso il decadimento delle correlazioni per i caratteri.
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