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On the Small Jumps of Lévy Processes and the Multivariate Dickman Distribution
Published 30 Mar 2024 in math.PR | (2404.00239v1)
Abstract: We develop a Dickman approximation to the small jumps of multivariate L\'evy processes and related stochastic integral processes. Further, we show that the multivariate Dickman distribution is the unique distribution satisfying a certain stability property and that a related stochastic process is self-similar. Along the way we develop applications to non-Gaussian OU-Processes, to the class of generalized multivariate gamma distributions, and to the popular Barndorff-Nielsen and Shephard stochastic volatility model.
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