2 papers
math.NA2026
A bi-fidelity method for the uncertain Vlasov-Poisson system near quasineutrality in an asymptotic-preserving particle-in-cell framework
Guangwei Liu, Liu Liu, Yanli Wang
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 equa…
math.NA2025
The unified gas kinetic wave-particle method for the neutron transport equation
Guangwei Liu, Shuang Tan, Yanli Wang
The unified gas-kinetic wave-particle (UGKWP) method is proposed for the neutron transport equation, addressing the inherent multiscale nature of neutron propagation in both optica…