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New trends on the systems approach to modeling SARS-CoV-2 pandemics in a globally connected planet
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 …
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
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 …
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
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 …
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
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 …
interacting particles with a proved effectiveness in describing real world phenomena ranging …
Multi-fidelity methods for uncertainty propagation in kinetic equations
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 …
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 …
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 …
Quantifying uncertainties in the models such as arisen from collision kernels, initial or …
Computing Black Scholes with uncertain volatility—a machine learning approach
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 …
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 …
need for efficient methods capable of quantifying the effects of random inputs on outputs is …