TY - JOUR
T1 - Uniform Superapproximation of the Derivative of Tetrahedral Quadratic Finite Element Approximation
JO - Journal of Computational Mathematics
VL - 1
SP - 75
EP - 82
PY - 2005
DA - 2005/02
SN - 23
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jcm/8797.html
KW - Tetrahedron, Superapproximation, Finite element.
AB - <p style="text-align: justify;">In this paper,we will prove the derivative of tetrahedral quadratic finite element approximation is superapproximate to the derivative of the quadratic Lagrange interpolant of the exact solution in the $L^{\infty}$-norm, which can be used to enhance the accuracy of the derivative of tetrahedral quadratic finite element approximation to the derivative of the exact solution. &nbsp;</p>