Intermittency of Superpositions of Ornstein-Uhlenbeck Type Processes
Probability
2016-10-12 v1
Abstract
The phenomenon of intermittency has been widely discussed in physics literature. This paper provides a model of intermittency based on L\'evy driven Ornstein-Uhlenbeck (OU) type processes. Discrete superpositions of these processes can be constructed to incorporate non-Gaussian marginal distributions and long or short range dependence. While the partial sums of finite superpositions of OU type processes obey the central limit theorem, we show that the partial sums of a large class of infinite long range dependent superpositions are intermittent. We discuss the property of intermittency and behavior of the cumulants for the superpositions of OU type processes.
Keywords
Cite
@article{arxiv.1512.00670,
title = {Intermittency of Superpositions of Ornstein-Uhlenbeck Type Processes},
author = {Danijel Grahovac and Nikolai N. Leonenko and Alla Sikorskii and Irena Tešnjak},
journal= {arXiv preprint arXiv:1512.00670},
year = {2016}
}