@Article{JCM-12-113,
author = {Sheng Zhang},
title = {Preconditioning of the Stiffness Matrix of Local Refined Triangulation},
journal = {Journal of Computational Mathematics},
year = {1994},
volume = {12},
number = {2},
pages = {113--117},
abstract = {<p style="text-align: justify;">A preconditioning method for the finite element stiffness matrix is given in this paper. The triangulation is refined in a subregion; the preconditioning process is composed of resolution of two regular subproblems; the condition number of the preconditioned matrix is $O(1+log\frac{H}{h})$, where $H$ and $h$ are mesh sizes of the unrefined and local refined triangulation respectively.</p>},
issn = {1991-7139},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jcm/9285.html}
}