A Novel Spatio-Temporal Fully Meshless Method for Parabolic PDEs

We introduce a meshless method derived by considering the time variable as a spatial variable without the need to extend further conditions to the solution of linear and non-linear parabolic PDEs. The method is based on a moving least squares method, more precisely, the generalized finite difference...

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Bibliographic Details
Authors: Benito, Juan José; García, Ángel; Negreanu Pruna, Mihaela; Ureña, Francisco; Vargas, Antonio M.
Format: Article
Publication date:2022
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/72513
Online Access:https://hdl.handle.net/20.500.14352/72513
Access Level:Open access
Keyword:generalized finite differences
meshless method
parabolic partial differential equations
Matemáticas (Matemáticas)
Funciones (Matemáticas)
12 Matemáticas
1202 Análisis y Análisis Funcional
Description
Summary:We introduce a meshless method derived by considering the time variable as a spatial variable without the need to extend further conditions to the solution of linear and non-linear parabolic PDEs. The method is based on a moving least squares method, more precisely, the generalized finite difference method (GFDM), which allows us to select well-conditioned stars. Several 2D and 3D examples, including the time variable, are shown for both regular and irregular node distributions. The results are compared with explicit GFDM both in terms of errors and execution time.