Multifractality of products of geometric Ornstein-Uhlenbeck-type processes

Autor: V. V. Anh, Nikolai N. Leonenko, Narn-Rueih Shieh
Rok vydání: 2008
Předmět:
Zdroj: Advances in Applied Probability. 40:1129-1156
ISSN: 1475-6064
0001-8678
DOI: 10.1017/s0001867800002998
Popis: We investigate the properties of multifractal products of geometric Ornstein-Uhlenbeck (OU) processes driven by Lévy motion. The conditions on the mean, variance, and covariance functions of the resulting cumulative processes are interpreted in terms of the moment generating functions. We consider five cases of infinitely divisible distributions for the background driving Lévy processes, namely, the gamma and variance gamma distributions, the inverse Gaussian and normal inverse Gaussian distributions, and the z-distributions. We establish the corresponding scenarios for the limiting processes, including their Rényi functions and dependence structure.
Databáze: OpenAIRE