Cao, Weiming; Huang, Weizhang; Russell, Robert D. - In: Mathematics and Computers in Simulation (MATCOM) 56 (2001) 2, pp. 127-143
Error indicators based on solution gradients, interpolation errors, and a posteriori error estimates are presented for … both interpolation errors and a posteriori error estimates work well and have better performance than that based on the … solution gradient. Since, the interpolation error is in general easier and more economic to compute than a posteriori error …