The Fractional Poisson Process and the Inverse Stable Subordinator
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...We can conclude that, in the fractional case, catastrophes occur according to a fractional Poisson process ([1,17,20]) with rate ξ if the system is not empty....
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...a time-changed birth-death process [17,20], by means of an inverse stable subordinator [21], solves the ✷✽...
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21 citations
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...Let us note that by solving the system (33), Beghin and Orsingher in [1] introduce what they call the ”first form of the fractional Poisson process” , and in [29] Meerschaert, Nane and Vellaisamy show that this process is a renewal process with Mittag-Leffler waiting time density as in (17), hence is identical with the ”fractional Poisson process”....
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...and Meerschaert, Nane and Vellaisamy [29]....
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...Remark According to Meerschaert, Nane and Vellaisamy [29] zβ(t) = z1(y(t∗(t))) , (41) where zβ(t) is a CTRW with β-Mittag-Leffler waiting times and an arbitrary jump density, and z1 is a CTRW with the exponential waiting times of the standard Poisson process having the same arbitrary jump distribution....
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...Beghin and Orsingher call the process so generated by subordination the ”first form of the fractional Poisson process” (in fact they consider other kinds of generalization, too) whereas the authors of [29] call it the ”fractal Poisson process” and show that it is a renewal process with the same waiting time distribution as the fractional Poisson process....
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...(40) Remark According to Meerschaert, Nane and Vellaisamy [29] zβ(t) = z1(y(t∗(t))) , (41) where zβ(t) is a CTRW with β-Mittag-Leffler waiting times and an arbitrary jump density, and z1 is a CTRW with the exponential waiting times of the standard Poisson process having the same arbitrary jump distribution....
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...[28] find the following stochastic representation for FPP: Nα(t) = N ( Yα(t) ) , t ≥ 0, α ∈ (0, 1), where N = {N(t), t ≥ 0}, is the classical homogeneous Poisson process with parameter λ > 0, which is independent of the inverse stable subordinator Yα....
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19 citations
References
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