@Article{IJNAM-3-273,
author = {Chen , Long},
title = {Superconvergence of Tetrahedral Linear Finite Elements},
journal = {International Journal of Numerical Analysis and Modeling},
year = {2006},
volume = {3},
number = {3},
pages = {273--282},
abstract = {<p style="text-align: justify;">In this paper, we show that the piecewise linear finite
element solution $u_h$ and the linear interpolation $u_I$ have superclose
gradient for tetrahedral meshes, where most elements are obtained by
dividing approximate parallelepiped into six tetrahedra. We then analyze
a post-processing gradient recovery scheme, showing that the global $L^2$ projection of $\nabla u_h$ is a superconvergent gradient approximation to
$\nabla u$.</p>},
issn = {2617-8710},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/ijnam/900.html}
}