本文研究重调和方程Zienkiewicz元逼近的多重网格法,证明了h无美收敛性,并得到了多重网格套迭代解与边值问题真解的最优阶误差估计.
We study the multigrid method for the Zienkiewicz finite element approximation of biharmonic equation. The h-independent convergence is proved,and the error estimate of optimal order between the multigrid nested iteration solution and the exact solution o