Supercloseness of linear finite element method on Bakhvalov-type meshes for singularly perturbed convection-diffusion equation in 1D

Abstract In this article, a singularly perturbed convection–diffusion equation is solved by a linear finite element method on Bakhvalov-type meshes. By means of a novel interpolation to the solution, a supercloseness result is obtained on Bakhvalov-type meshes for the first time.

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