Supercloseness of the NIPG method for a singularly perturbed convection diffusion problem on Shishkin mesh

DOI10.1007/s10092-024-00571-7arXiv2112.06201OpenAlexW4392230149MaRDI QIDQ6151546

Xiaoqi Ma, Jin Zhang

Publication date: 11 March 2024

Published in: Calcolo (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2112.06201

zbMATH Keywords

singular perturbationsuperconvergenceShishkin meshsuperclosenessconvection diffusionNIPG method

Mathematics Subject Classification ID

Diffusion (76R50) Stability and convergence of numerical methods for boundary value problems involving PDEs (65N12) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Numerical computation of matrix norms, conditioning, scaling (65F35) Mesh generation, refinement, and adaptive methods for boundary value problems involving PDEs (65N50) Numerical quadrature and cubature formulas (65D32)

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