Theory of Probability and Mathematical Statistics
The Mittag-Leffler function in the thinning theory for renewal processes
R. Gorenflo, F. Mainardi
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Abstract: The main purpose of this note is to point out the relevance of the Mittag-Leffler probability distribution in the so-called thinning theory for a renewal process with a queue of power law type. This theory, formerly considered by Gnedenko and Kovalenko in 1968 without the explicit reference to the Mittag-Leffler function, was used by the authors in the theory of continuous time random walk and consequently of fractional diffusion in a plenary lecture by the late Professor Gorenflo at a Seminar on Anomalous Transport held in Bad-Honnef in July 2006, published in a 2008 book. After recalling the basic theory of renewal processes including the standard and the fractional Poisson processes, here we have revised the original approach by Gnedenko and Kovalenko for convenience of the experts of stochastic processes who are not aware of the relevance of the Mittag-Leffler functions.
Keywords: Mittag-Leffler functions, thinning (rarefaction), renewal processes, queuing theory, Poisson process.
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