Fangfang Qin,Min Zha,Feng Wang. A Two-level Additive Schwarz Preconditioning Algorithm for the Weak Galerkin Method for the Second-order Elliptic Equation[EB/OL]. Beijing:Sciencepaper Online[2015-12-21]. http://www.paper.edu.cn/releasepaper/content/201512-1061. 此文件来自 中国科技论文在线 请勿作用于商业用途!