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An introduction to uncertainty quantification for kinetic equations and related problems
L Pareschi - Trails in kinetic theory: Foundational aspects and …, 2021 - Springer
We overview some recent results in the field of uncertainty quantification for kinetic
equations and related problems with random inputs. Uncertainties may be due to various …
equations and related problems with random inputs. Uncertainties may be due to various …
A bi-fidelity method for the multiscale Boltzmann equation with random parameters
In this paper, we study the multiscale Boltzmann equation with multi-dimensional random
parameters by a bi-fidelity stochastic collocation (SC) method developed in [52],[70],[71]. By …
parameters by a bi-fidelity stochastic collocation (SC) method developed in [52],[70],[71]. By …
Hypocoercivity for a BGK model for gas mixtures
L Liu, M Pirner - Journal of Differential Equations, 2019 - Elsevier
We consider a kinetic model for a two component gas mixture without chemical reactions.
Our goal is to study hypocoercivity for the linearized BGK model for gas mixtures in …
Our goal is to study hypocoercivity for the linearized BGK model for gas mixtures in …
Spectral convergence of the stochastic Galerkin approximation to the Boltzmann equation with multiple scales and large random perturbation in the collision kernel
In [L. Liu and S. **, Multiscale Model. Simult., 16, 1085-1114, 2018], spectral convergence
and long-time decay of the numerical solution towards the global equilibrium of the …
and long-time decay of the numerical solution towards the global equilibrium of the …
Error estimate of a bifidelity method for kinetic equations with random parameters and multiple scales
In this paper, we conduct uniform error estimates of the bifidelity method for multiscale
kinetic equations. We take the Boltzmann and the linear transport equations as important …
kinetic equations. We take the Boltzmann and the linear transport equations as important …
On the multi-species Boltzmann equation with uncertainty and its stochastic Galerkin approximation
In this paper the nonlinear multi-species Boltzmann equation with random uncertainty
coming from the initial data and collision kernel is studied. Well-posedness and long-time …
coming from the initial data and collision kernel is studied. Well-posedness and long-time …
High Order IMEX Stochastic Galerkin Schemes for Linear Transport Equation with Random Inputs and Diffusive Scalings
In this paper, we consider the high order method for solving the linear transport equations
under diffusive scaling and with random inputs. To tackle the randomness in the problem …
under diffusive scaling and with random inputs. To tackle the randomness in the problem …
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 …
Stochastic Galerkin methods for the Boltzmann-Poisson system
We study uncertainty quantification for a Boltzmann-Poisson system that models electron
transport in semiconductors and the physical collision mechanisms over the charges, using …
transport in semiconductors and the physical collision mechanisms over the charges, using …