Dynamical systems/Probability theory
On the CLT for rotations and BV functions
[Sur le TCL pour les rotations et les fonctions BV]
Comptes Rendus. Mathématique, Tome 357 (2019) no. 2, pp. 212-215.

Soient xx+α une rotation sur le cercle, φ une fonction en escalier et φn(x) les sommes ergodiques j=0n1φ(x+jα). Pour α dans une classe contenant les rotations à quotients partiels bornés et sous une condition diophantienne sur les discontinuités de φ, nous montrons que φn/φn2 est asymptotiquement gaussien pour n dans un ensemble de densité 1.

Let xx+α be a rotation on the circle and let φ be a step function. Denote by φn(x) the ergodic sums j=0n1φ(x+jα). For α in a class containing the rotations with bounded partial quotients and under a Diophantine condition on the discontinuities of φ, we show that φn/φn2 is asymptotically Gaussian for n in a set of density 1.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2019.01.008
Conze, Jean-Pierre 1 ; Le Borgne, Stéphane 1

1 Université de Rennes, CNRS, IRMAR, UMR 6625, 35000 Rennes, France
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Conze, Jean-Pierre; Le Borgne, Stéphane. On the CLT for rotations and BV functions. Comptes Rendus. Mathématique, Tome 357 (2019) no. 2, pp. 212-215. doi : 10.1016/j.crma.2019.01.008. http://www.numdam.org/articles/10.1016/j.crma.2019.01.008/

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