A Posteriori Error Estimates for Nonconforming Approximations of Evolutionary Convection-Diffusion Problems
Numerical Analysis
2013-12-02 v1
Abstract
We derive computable upper bounds for the difference between an exact solution of the evolutionary convection-diffusion problem and an approximation of this solution. The estimates are obtained by certain transformations of the integral identity that defines the generalized solution. These estimates depend on neither special properties of the exact solution nor its approximation, and involve only global constants coming from embedding inequalities. The estimates are first derived for functions in the corresponding energy space, and then possible extensions to classes of piecewise continuous approximations are discussed.
Cite
@article{arxiv.1012.5089,
title = {A Posteriori Error Estimates for Nonconforming Approximations of Evolutionary Convection-Diffusion Problems},
author = {Sergey I. Repin and Satyendra K. Tomar},
journal= {arXiv preprint arXiv:1012.5089},
year = {2013}
}
Comments
10 pages