Analysis of difference schemes for the Fokker–Planck angular diffusion operator

This paper is dedicated to the mathematical analysis of difference schemes for discretizing the angular diffusion operator present in the azimuth-independent Fokker-Planck equation. The study establishes sets of sufficient conditions to ensure that the schemes achieve convergence of order 2, and pro...

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Detalles Bibliográficos
Autores: López Pouso, Óscar, Segura Sala, José Javier|||0000-0002-0841-5636
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/38143
Acceso en línea:https://hdl.handle.net/10902/38143
Access Level:acceso abierto
Palabra clave:Fokker–Planck angular diffusion operator
Numerical differentiation
Discrete ordinates method
Charged particles
Light propagation
Descripción
Sumario:This paper is dedicated to the mathematical analysis of difference schemes for discretizing the angular diffusion operator present in the azimuth-independent Fokker-Planck equation. The study establishes sets of sufficient conditions to ensure that the schemes achieve convergence of order 2, and provides insights into the rationale behind certain widely recognized discrete ordinates methods. In the process, interesting properties regarding Gaussian nodes and weights, which until now have remained unnoticed by mathematicians, naturally emerge.