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math.NA2026
An Asymptotic-Preserving Micro--Macro Scheme for Plasma Simulations in Quasi-Neutral and Low-Mach-Number Regimes with Kinetic Upgrades
Zeyu Liu, Fabrice Deluzet, Chang Yang
We propose an asymptotic-preserving micro--macro method bridging a kinetic description of electrons and a low-frequency reduced model in which the electrons are a massless, quasi-n…
math.NA2025
A Conservative Cascade Semi-Lagrangian Method for Solving the Vlasov Equation
Chunyang Xu, Michel Mehrenberger, Chang Yang
The cascade remapping method, originally proposed by Nair et al. (2002) for atmospheric modeling, enables efficient and mass conservative semi Lagrangian (SL) transport through suc…