Natural Superconvergent Points of Equilateral Triangular Finite Elements — A Numerical Example

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Abstract

A numerical test case demonstrates that the Lobatto and the Gauss points are not natural superconvergent points of the cubic and the quartic finite elements under equilateral triangular mesh for the Poisson equation.

Keywords:

Finite element method Superconvergence Triangular mesh Equilateral.
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Natural Superconvergent Points of Equilateral Triangular Finite Elements — A Numerical Example. (2018). Journal of Computational Mathematics, 24(1), 19-24. https://www.global-sci.com/index.php/JCM/article/view/11741