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20242026
most citedOptimal Control of a Diffusive Epidemiological Model Involving the Caputo-Fabrizio Fractional Time-Derivative

5 citations · 21 across the 15 of their papers we have counts for

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q-bio.QM2025★ 2 cited

A Nonstandard Finite Difference Scheme for an SEIQR Epidemiological PDE Model

Achraf Zinihi, Matthias Ehrhardt, Moulay Rchid Sidi Ammi

This paper introduces a nonstandard finite difference (NSFD) approach to a reaction-diffusion SEIQR epidemiological model, which captures the spatiotemporal dynamics of infectious…

math.DS2025★ 2 cited

A Koopman Operator Framework for Nonlinear Epidemic Dynamics: Application to an SIRSD Model

Achraf Zinihi, Matthias Ehrhardt, Moulay Rchid Sidi Ammi

We develop and analyze an SIRSD epidemic model, which extends the classical SIR framework by incorporating waning immunity and disease-induced mortality. A rigorous well-posedness…

stat.AP2025

Actuarial Analysis of an Infectious Disease Insurance based on an SEIARD Epidemiological Model

Achraf Zinihi, Matthias Ehrhardt, Moulay Rchid Sidi Ammi

The growing number of infectious disease outbreaks, like the one caused by the SARS-CoV-2 virus, underscores the necessity of actuarial models that can adapt to epidemic-driven ris…

math.DS2025

Spatiotemporal SEIQR Epidemic Modeling with Optimal Control for Vaccination, Treatment, and Social Measures

Achraf Zinihi, Matthias Ehrhardt, Moulay Rchid Sidi Ammi

This paper introduces a spatiotemporal SEIQR epidemic model governed by a system of reaction-diffusion partial differential equations that incorporates optimal control strategies.…

physics.ao-ph2025★ 1 cited

Square Root Operators and the Well-Posedness of Pseudodifferential Parabolic Models of Wave Phenomena

Matthias Ehrhardt, Jochen Glück, Pavel Petrov +1

Pseudodifferential parabolic equations with an operator square root arise in wave propagation problems as a one-way counterpart of the Helmholtz equation. The expression under the…