TY - JOUR T1 - An a Posteriori Error Estimator for a Non-Conforming Domain Decomposition Method for a Harmonic Elastodynamics Equation JO - East Asian Journal on Applied Mathematics VL - 2 SP - 365 EP - 384 PY - 2018 DA - 2018/05 SN - 8 DO - http://doi.org/10.4208/eajam.100317.020318a UR - https://global-sci.org/intro/article_detail/eajam/12211.html KW - Harmonic elastodynamics equation, domain decomposition method, Nitsche method, non-matching mesh, a posteriori error estimator, adaptive method. AB -

We develop a reliable residual-based a posteriori error estimator for a non-conforming method with non-matching meshes for a harmonic elastodynamics equation and show that the approximation method converges with an optimal order to the exact solution. Moreover, we propose an adaptive strategy to reduce computational cost and derive better approximations for problems with singularities and with large approximating systems. Numerical experiments confirm theoretical conclusions.