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Generalized Wright Analysis: Stochastic and Applications
W. Bock, L. Cristofaro, J. L. da Silva · 2025-11-15 · via math.PR updates on arXiv.org

In this paper, we investigate the stochastic counterpart of the generalized Wright analysis introduced in Beghin et al.~ in Integral Equations and Operator Theory, {\bf 97}, 2025. We define a new class of non-Gaussian and non-Markovian processes, called the generalized Fox-$H$ process, which extends well-known processes such as fractional Brownian motion and generalized grey Brownian motion. We study their joint probability density and covariance, showing the stationarity of their increments. In addition, this process has H{ö}lder continuous paths and is represented as a time-change of fractional Brownian motion. We characterize the generalized Fox-$H$ noise as an element in the distribution space $(\mathcal{S})^{-1}_{μ_Ψ}$. We conclude by establishing the existence of local times and discussing their anomalous diffusion properties.

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