A non-positive-definite multifrontal algorithm for finite element analysis

摘要：

This paper presents the Expanded Cholesky Method (ECM) for multifrontal (MF) algorithm to solute sparse symmetric non-positive-definite finite element equations.Optimization methods for reducing the extra demand storage space of fill-ins of MF algorithm have been carefully researched.Results show that the non-positive-definite pattern MF algorithm can be used to calculate a class of non-positive-definite electromagnetic problems.

关键词： multifrontal algorithm non-positive-definite pattern finite element Ezpanded Cholesky Method

作者: J.Tian Z.Q.Lv X.W.Shi L.Xu F.Wei

作者单位: National Key Laboratory of Antenna and Microwave Technology,Xidian University,Xian 710071,P.R.China

会议类型: 国际会议

会议名称: Asia-Pacific Conference on Environmental Electromagnetics CEEM2009(第五届亚太环境电磁学学术会议)

会议地点: 西安

会议语种:英文

页码: 337-340

在线出版日期: 2009-09-16（万方平台首次上网日期，不代表论文的发表时间）