TY - JOUR T1 - Rate of Convergence of Schwarz Alternating Method for Time-Dependent Convection-Diffusion Problem AU - Hu , Jian-Wei AU - Wang , Cai-Hua JO - Journal of Computational Mathematics VL - 5 SP - 479 EP - 490 PY - 2002 DA - 2002/10 SN - 20 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jcm/8933.html KW - Rate of convergence, Schwarz alternating method, Convection-diffusion problem. AB -

This paper provides a theoretical justification to a overlapping domain decomposition method applied to the solution of time-dependent convection-diffusion problems. The method is based on the partial upwind finite element scheme and the discrete strong maximum principle for steady problem. An error estimate in $L^\infty(0,T;L^\infty(\Omega))$ is obtained and the fact that convergence factor $\rho(\tau,h)\rightarrow 0$ exponentially as $\tau,h\rightarrow 0$ is also proved under some usual conditions.