TY - JOUR
T1 - The Dual Mixed Method for an Unilateral Problem
AU - Wang , Lie-Heng
JO - Journal of Computational Mathematics
VL - 6
SP - 733
EP - 746
PY - 2003
DA - 2003/12
SN - 21
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jcm/10231.html
KW - Dual Mixed Method, Unilateral Problem.
AB - <p style="text-align: justify;">In this paper, the dual mixed method for an unilateral problem, which is the simplified modelling of scalar function for the friction-free contact problem, is considered. The dual mixed problem is introduced, the existence and uniqueness of the solution of the problem are presented, and error bounds $O(h^{\frac{3}{4}})$ and $O(h^{\frac{3}{2}})$ are obtained for the dual mixed finite element approximations of Raviart-Thomas elements for $k=0$ and $k=1$ respectively.</p>