TY - JOUR T1 - Reliable and Efficient a Posteriori Error Estimates of DG Methods for a Simplified Frictional Contact Problem AU - Wang , Fei AU - Han , Weimin JO - International Journal of Numerical Analysis and Modeling VL - 1 SP - 49 EP - 62 PY - 2018 DA - 2018/10 SN - 16 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/ijnam/12793.html KW - Elliptic variational inequality, discontinuous Galerkin method, a posteriori error estimators, reliability, efficiency. AB -

A posteriori error estimators are studied for discontinuous Galerkin methods for solving a representative elliptic variational inequality of the second kind, known as a simplified frictional contact problem. The estimators are derived by relating the error of the variational inequality to that of a linear problem. Reliability and efficiency of the estimators are theoretically proved.