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A class of multivariate infinitely divisible distributions related to arcsine density

Abstract

Two transformations A1\mathcal{A}_1 and A2\mathcal{A}_2 of L\'{e}vy measures on Rd\mathbb{R}^d based on the arcsine density are studied and their relation to general Upsilon transformations is considered. The domains of definition of A1\mathcal{A}_1 and A2\mathcal{A}_2 are determined and it is shown that they have the same range. The class of infinitely divisible distributions on Rd\mathbb{R}^d with L\'{e}vy measures being in the common range is called the class AA and any distribution in the class AA is expressed as the law of a stochastic integral 01cos(21\uppit)dXt\int_0^1\cos(2^{-1}\uppi t)\,\mathrm{d}X_t with respect to a L\'{e}vy process {Xt}\{X_t\}. This new class includes as a proper subclass the Jurek class of distributions. It is shown that generalized type GG distributions are the image of distributions in the class AA under a mapping defined by an appropriate stochastic integral. A2\mathcal{A}_2 is identified as an Upsilon transformation, while A1\mathcal{A}_1 is shown not to be.

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