A Two-Level Spectral Preconditioning for the Finite Element Method

摘要：

　　An efficient auxiliary space preconditioning (ASP)was proposed for the linear matrix equation that was formed by the frequency-domain finite element method.A new two-level spectral preconditioning utilizing auxiliary space preconditioning is presented to solve the linear system.This technique is a combination of ASP and a low-rank update spectral preconditioning, in which the restarted deflated generalized minimal residual GMRES with the newly constructed spectral two-step preconditioning is considered as the iterative method for solving the system.Numerical experiments indicate that the proposed preconditioning is efficient and can significantly reduce the iteration number.

作者: Zi He Weiying Ding Ningye He Rushan Chen

作者单位: Department of Communication Engineering Nanjing University of Science and Technology, Nanjing, 210094, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Antennas and Propagation(2013天线与传播国际会议)

会议地点: 南京

会议语种:英文

页码: 196-199

在线出版日期: 2013-10-23（万方平台首次上网日期，不代表论文的发表时间）