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20222026
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math.PR2026

A time-fractional Kalman filter

Olfa Draouil, Rahma Yasmina Moulay Hachemi, Bernt Øksendal +1

We study a linear filtering problem in which the signal process is described by a time-fractional linear stochastic differential equation driven by Brownian motion. We derive a sto…

math.PR2025

Multiparameter Lévy white noise theory and applications

Olfa Draouil, Rahma Yasmina Moulay Hachemi, Bernt Øksendal

We construct a white noise theory and white noise calculus for the (multi-parameter) L\' evy sheet and its compensated Poisson random measures. The theory applies to stochastic par…

math.PR2025

The stochastic heat inclusion with fractional time driven by time-space Brownian and Lévy white noise

Olfa Draouil, Rahma Yasmina Moulay Hachemi, Bernt Øksendal

We study a time-fractional stochastic heat inclusion driven by additive time-space Brownian and Lévy white noise. The fractional time derivative is interpreted as the Caputo deriva…

math.PR2024

The time-fractional heat equation driven by fractional time-space white noise

Rahma Yasmina Moulay Hachemi, Bernt Øksendal

We give an introduction to the time-fractional stochastic heat equation driven by 1+d-parameter fractional time-space white noise, in the following two cases: (i) With additive noi…

math.PR2022

The time-fractional stochastic heat equation driven by time-space white noise

Rahma Yasmina Moulay Hachemi, Bernt Øksendal

We study the time-fractional stochastic heat equation driven by time-space white noise with space dimension and the fractional time-derivative is the C…