Multidimensional Gaussian sums arising from distribution of Birkhoff sums in zero entropy dynamical systems
Bernardo, M. ; Courbage, M. ; Truong, T.T.
HAL, hal-00003203 / Harvested from HAL
A duality formula, of the Hardy and Littlewood type for multidimensional Gaussian sums, is proved in order to estimate the asymptotic long time behavior of distribution of Birkhoff sums $S_n$ of a sequence generated by a skew product dynamical system on the $\mathbb{T}^2$ torus, with zero Lyapounov exponents. The sequence, taking the values $\pm 1$, is pairwise independent (but not independent) ergodic sequence with infinite range dependence. The model corresponds to the motion of a particle on an infinite cylinder, hopping backward and forward along its axis, with a transversal acceleration parameter $\alpha$. We show that when the parameter $\alpha /\pi$ is rational then all the moments of the normalized sums $E\left( (S_n/\sqrt{n}\right)^k)$, but the second, are unbounded with respect to n, while for irrational $\alpha /\pi$, with bounded continuous fraction representation, all these moments are finite and bounded with respect to n.
Publié le : 2004-10-29
Classification:  PACS numbers: 05.40; 05.45,  [NLIN.NLIN-CD]Nonlinear Sciences [physics]/Chaotic Dynamics [nlin.CD],  [MATH.MATH-MP]Mathematics [math]/Mathematical Physics [math-ph],  [MATH.MATH-DS]Mathematics [math]/Dynamical Systems [math.DS]
@article{hal-00003203,
     author = {Bernardo, M. and Courbage, M. and Truong, T.T.},
     title = {Multidimensional Gaussian sums arising from distribution of Birkhoff sums in zero entropy dynamical systems},
     journal = {HAL},
     volume = {2004},
     number = {0},
     year = {2004},
     language = {en},
     url = {http://dml.mathdoc.fr/item/hal-00003203}
}
Bernardo, M.; Courbage, M.; Truong, T.T. Multidimensional Gaussian sums arising from distribution of Birkhoff sums in zero entropy dynamical systems. HAL, Tome 2004 (2004) no. 0, . http://gdmltest.u-ga.fr/item/hal-00003203/