Jh. Pan, GLOBAL SUPERCONVERGENCE FOR THE BILINEAR-CONSTANT SCHEME FOR THE STOKES PROBLEM, SIAM journal on numerical analysis, 34(6), 1997, pp. 2424-2430
For the stable bilinear-constant scheme applied for the Stokes problem
, the accuracy between the interpolation of exact solution and the fin
ite element solutionis first examined. Then, the global superconvergen
ce for the gradient oi the velocity and the pressure is derived with t
he aid of a suitable postprocessing method.