activity
20222026
most citedAn implicit, conservative and asymptotic-preserving electrostatic particle-in-cell algorithm for arbitrarily magnetized plasmas in uniform magnetic fields

15 citations · 17 across the 7 of their papers we have counts for

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4 papers · 1 filter

math.NA2026

An Energy-Conserving Unstaggered Electromagnetic-Potential Particle-in-Cell Method, Part II: Fully Relativistic Formulation with an Adapted Higuera--Cary Pusher

Andrew Christlieb, Luis Chacon, Sining Gong

We develop a fully relativistic extension of the energy-conserving, unstaggered electromagnetic-potential particle-in-cell method introduced in our earlier nonrelativistic work. As…

math.NA2026

An Energy-Conserving Unstaggered Electromagnetic-Potential Particle-in-Cell Method, Part I: Non-relativistic Generalized-Momentum Formulation

Andrew J. Christlieb, Luis Chacon, Sining Gong

We develop an unstaggered, potential-based particle-in-cell method for the nonrelativistic Vlasov-Maxwell system in the Lorenz gauge. The field update is written as a Crank-Nicolso…

math.NA2026

A Structure-Preserving Penalization Method for the Single-species Rosenbluth-Fokker-Planck Equation

Hamad El Kahza, Luis Chacón, William Taitano +2

The Rosenbluth-Fokker-Planck (RFP) equation describes Coulomb collisional dynamics within and across species in plasmas. It belongs to the broader class of anisotropic-diffusion-ad…

math.NA2024

Krylov-based Adaptive-Rank Implicit Time Integrators for Stiff Problems with Application to Nonlinear Fokker-Planck Kinetic Models

Hamad El Kahza, William Taitano, Jing-Mei Qiu +1

We propose a high order adaptive-rank implicit integrators for stiff time-dependent PDEs, leveraging extended Krylov subspaces to efficiently and adaptively populate low-rank solut…