@Article{IJNAM-2-409,
author = {H. Lee and D. Sheen},
title = {Basis for the Quadratic Nonconforming Triangular Element of Fortin and Soulie},
journal = {International Journal of Numerical Analysis and Modeling},
year = {2005},
volume = {2},
number = {4},
pages = {409--421},
abstract = {<p style="text-align: justify;">A basis for the quadratic ($P_2$) nonconforming element of
Fortin and Soulie on triangles is introduced. The local and global
interpolation operators are defined. Error estimates of optimal order
are derived in both broken energy and $L^2(\Omega)$-norms for second-order
elliptic problems. Brief numerical results are also shown.</p>},
issn = {2617-8710},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/ijnam/938.html}
}