GLOBAL SUPERCONVERGENCE FOR THE BILINEAR-CONSTANT SCHEME FOR THE STOKES PROBLEM

摘要

For the stable bilinear-constant scheme applied for the Stokes problem, the accuracy between the interpolation of exact solution and the finite element solutionis first examined. Then, the global superconvergence for the gradient oi the velocity and the pressure is derived with the aid of a suitable postprocessing method. [References: 14]