New trends on the systems approach to modeling SARS-CoV-2 pandemics in a globally connected planet

G Bertaglia, A Bondesan, D Burini, R Eftimie… - arxiv preprint arxiv …, 2024 - arxiv.org
This paper presents a critical analysis of the literature and perspective research ideas for
modeling the epidemics caused by the SARS-CoV-2 virus. It goes beyond deterministic …

Odd-Even based asymptotic preserving scheme for a 2D stochastic kinetic–fluid model

M Bendahmane, J Tagoudjeu, M Zagour - Journal of Computational …, 2022 - Elsevier
A numerical approach to solve a new coupled stochastic kinetic–fluid model is proposed in
this paper. The approach yields a stable numerical scheme in the hydrodynamic limit as the …

Bi-fidelity stochastic collocation methods for epidemic transport models with uncertainties

G Bertaglia, L Liu, L Pareschi, X Zhu - arxiv preprint arxiv:2110.14579, 2021 - arxiv.org
Uncertainty in data is certainly one of the main problems in epidemiology, as shown by the
recent COVID-19 pandemic. The need for efficient methods capable of quantifying …

Micro-macro stochastic Galerkin methods for nonlinear Fokker–Planck equations with random inputs

G Dimarco, L Pareschi, M Zanella - Multiscale Modeling & Simulation, 2024 - SIAM
Nonlinear Fokker–Planck equations play a major role in modeling large systems of
interacting particles with a proved effectiveness in describing real world phenomena ranging …

Multi-fidelity methods for uncertainty propagation in kinetic equations

G Dimarco, L Liu, L Pareschi, X Zhu - arxiv preprint arxiv:2112.00932, 2021 - arxiv.org
The construction of efficient methods for uncertainty quantification in kinetic equations
represents a challenge due to the high dimensionality of the models: often the computational …

A bi-fidelity method for the uncertain Vlasov-Poisson system near quasineutrality in an asymptotic-preserving PIC framework

G Liu, L Liu, Y Wang - arxiv preprint arxiv:2412.05663, 2024 - arxiv.org
In this paper, we study the Vlasov-Poisson system with massless electrons (VPME) near
quasineutrality and with uncertainties. Based on the idea of reformulation on the Poisson …

A Study of Multiscale Kinetic Models with Uncertainties

L Liu - Young Researchers Conference, 2021 - Springer
There have been many challenges in studying multiscale kinetic models with uncertainties.
Quantifying uncertainties in the models such as arisen from collision kernels, initial or …

Computing Black Scholes with uncertain volatility—a machine learning approach

K Hellmuth, C Klingenberg - Mathematics, 2022 - mdpi.com
In financial mathematics, it is a typical approach to approximate financial markets operating
in discrete time by continuous-time models such as the Black Scholes model. Fitting this …

[PDF][PDF] A bi-fidelity collocation approach for kinetic epidemic models with random inputs

B Giulia, L Liu, P Lorenzo, Z Xueyu - yic2023.fe.up.pt
Data uncertainty is certainly one of the main problems in epidemiological modeling. The
need for efficient methods capable of quantifying the effects of random inputs on outputs is …