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Main Authors: Khandakar, Mostafizar, Pal, Bratati, Vellaisamy, Palaniappan
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2510.26156
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author Khandakar, Mostafizar
Pal, Bratati
Vellaisamy, Palaniappan
author_facet Khandakar, Mostafizar
Pal, Bratati
Vellaisamy, Palaniappan
contents In this paper, we introduce and study two time-changed variants of the generalized fractional Skellam process. These are obtained by time-changing the generalized fractional Skellam process with an independent Lévy subordinator with finite moments of any order and its inverse, respectively. We call the introduced processes the time-changed generalized fractional Skellam process-I (TCGFSP-I) and the time-changed generalized fractional Skellam process-II (TCGFSP-II), respectively. The probability generating function, moment generating function, moments, factorial moments, variance, covariance, {\it etc.}, are derived for the TCGFSP-I. We obtain a variant of the law of the iterated logarithm for it and establish its long-range dependence property. Several special cases of the TCGFSP-I are considered, and the associated system of governing differential equations is obtained. Later, some distributional properties and particular cases are discussed for the TCGFSP-II.
format Preprint
id arxiv_https___arxiv_org_abs_2510_26156
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Time-changed generalized fractional Skellam process
Khandakar, Mostafizar
Pal, Bratati
Vellaisamy, Palaniappan
Probability
In this paper, we introduce and study two time-changed variants of the generalized fractional Skellam process. These are obtained by time-changing the generalized fractional Skellam process with an independent Lévy subordinator with finite moments of any order and its inverse, respectively. We call the introduced processes the time-changed generalized fractional Skellam process-I (TCGFSP-I) and the time-changed generalized fractional Skellam process-II (TCGFSP-II), respectively. The probability generating function, moment generating function, moments, factorial moments, variance, covariance, {\it etc.}, are derived for the TCGFSP-I. We obtain a variant of the law of the iterated logarithm for it and establish its long-range dependence property. Several special cases of the TCGFSP-I are considered, and the associated system of governing differential equations is obtained. Later, some distributional properties and particular cases are discussed for the TCGFSP-II.
title Time-changed generalized fractional Skellam process
topic Probability
url https://arxiv.org/abs/2510.26156