Asymptotic Expansion for the Derivative of Finite Elements

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Abstract

It is proved in this paper that there exists an expansion for the derivative of the linear finite element approximation to a model Dirichlet problem in a polygonal domain with a piecewise uniform triangulation.  

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Asymptotic Expansion for the Derivative of Finite Elements. (2021). Journal of Computational Mathematics, 2(4), 361-363. https://www.global-sci.com/JCM/article/view/10783