Ergodicity bounds for stable Ornstein–Uhlenbeck systems in Wasserstein distance with applications to cutoff stability

G Barrera, MA Högele - Chaos: An Interdisciplinary Journal of …, 2023 - pubs.aip.org
This article establishes cutoff stability also known as abrupt thermalization for generic
multidimensional Hurwitz stable Ornstein–Uhlenbeck systems with (possibly degenerate) …

Approximating the first passage time density of diffusion processes with state-dependent jumps

G D'Onofrio, A Lanteri - Fractal and Fractional, 2022 - mdpi.com
We study the problem of the first passage time through a constant boundary for a jump
diffusion process whose infinitesimal generator is a nonlocal Jacobi operator. Due to the …

Quantifying uncertainty with a derivative tracking SDE model and application to wind power forecast data

R Caballero, A Kebaier, M Scavino… - Statistics and Computing, 2021 - Springer
We develop a data-driven methodology based on parametric Itô's Stochastic Differential
Equations (SDEs) to capture the real asymmetric dynamics of forecast errors, including the …

Jacobi processes with jumps as neuronal models: A first passage time analysis

G D'Onofrio, P Patie, L Sacerdote - SIAM Journal on Applied Mathematics, 2024 - SIAM
To overcome some limits of classical neuronal models, we propose a Markovian
generalization of the classical model based on Jacobi processes by introducing downwards …

The mutual arrangement of Wright-Fisher diffusion path measures and its impact on parameter estimation

PA Jenkins - arXiv preprint arXiv:2410.15955, 2024 - arxiv.org
The Wright-Fisher diffusion is a fundamentally important model of evolution encompassing
genetic drift, mutation, and natural selection. Suppose you want to infer the parameters …

[HTML][HTML] Transient dynamics of Pearson diffusions facilitates estimation of rate parameters

S Ditlevsen, AC Rubio, P Lansky - Communications in Nonlinear Science …, 2020 - Elsevier
Estimation of parameters in stochastic processes has been thoroughly investigated for
decades and the asymptotic properties of the estimators are known. However, reaching the …

Inhibition enhances the coherence in the Jacobi neuronal model

G D'Onofrio, P Lansky, M Tamborrino - Chaos, Solitons & Fractals, 2019 - Elsevier
The output signal is examined for the Jacobi neuronal model which is characterized by input-
dependent multiplicative noise. The dependence of the noise on the rate of inhibition turns …

On the Kemeny time for continuous-time reversible and irreversible Markov processes with applications to stochastic resetting and to conditioning towards forever …

A Mazzolo, C Monthus - Journal of Statistical Mechanics: Theory …, 2023 - iopscience.iop.org
For continuous-time ergodic Markov processes, the Kemeny time τ∗ is the characteristic
time needed to converge towards the steady state P∗(x): in real-space, the Kemeny time τ∗ …

First-passage times and normal tissue complication probabilities in the limit of large populations

PG Hufton, E Buckingham-Jeffery, T Galla - Scientific Reports, 2020 - nature.com
The time of a stochastic process first passing through a boundary is important to many
diverse applications. However, we can rarely compute the analytical distribution of these first …

A stochastic Schumacher diffusion process: Probability characteristics computation and statistical analysis

A Nafidi, A El Azri, R Gutiérrez-Sánchez - Methodology and Computing in …, 2023 - Springer
The principal goal of this article is to establish a methodological approach to computational
statistical analysis for a new in-homogeneous stochastic diffusion process with mean …