摘要
导出了具有对称系数阵的大型,稀疏线性方程组的非完全Cholesky分解-复双共轭梯法的计算公式,。给出了有关复对称矩阵Cholesky分解的明确阐述,并且分析,比较了两种不同的非完全分解预条件方案。
In this paper, the formulas for incomplete Cholesky decomposition-complex bi-conjugate gradient method(IC-CBCG method) are derived rigorously. Some useful statements for Cholesky decomposition of complex sysmmetric matrices are given. Finally, two different incomplete preconditioning decompositions are analyzed and compared.
出处
《哈尔滨理工大学学报》
CAS
1996年第3期73-77,共5页
Journal of Harbin University of Science and Technology
关键词
共轭梯度法
复对称系数矩阵
矩阵
线性代数方程
: symmetric positive definite matrix
cholesky decomposition
complex bi-conjugate gradient method