摘要
给出了非奇H矩阵几个新的实用性判据,改进了近期的一些结果,并给出相应数值例子来说明结果的有效性.
Nonsingular H-matrices play an important role in many fields, but in pratice it is difficult to determine whether a matrix is a nonsingular H-matrix or not. This paper gives some criteria for nonsingular H-matrices, improves and generalizes some related results. Its effecetiveness is illustrated by some numerical examples.
出处
《高校应用数学学报（A辑）》
CSCD
北大核心
2007年第1期111-119,共9页
Applied Mathematics A Journal of Chinese Universities(Ser.A)
基金
国家自然科学基金(10671164)
湖南省教育厅重点科研基金(02A010)
面上项目(03C452)
关键词
非奇H-矩阵
对角占优
不可约对角占优阵
非零元素链
nonsingular H-matrix
diagonal dominance
irreducible diagonally dominant matrix
nonzero elements chain
