摘要
通过二次划分指标集,利用不等式的放缩技巧,给出了非奇异H-矩阵一类新的判定方法,并将其推广到不可约情形和非零元素链情形。最后给出了数值例子,说明了此方法的优越性。
A new method for determining nonsingular H-matrices was given by dividing the index set twice and using the scaling technique of inequalities.The irreducible case and non-zero element chain case were also considered.Finally,a numerical example was given to illustrate the advantages of this method.
作者
温立书
杨姝
吕振华
WEN Lishu;YANG Shu;LYU Zhenhua(School of Science, Shenyang Aerospace University, Shenyang 110136, China)
出处
《沈阳大学学报（自然科学版）》
CAS
2022年第3期234-238,共5页
Journal of Shenyang University：Natural Science
基金
国家自然科学基金资助项目(12171323)
辽宁省兴辽英才计划项目(XLYC2002017)。
关键词
H-矩阵
对角占优矩阵
广义对角占优矩阵
不可约矩阵
非零元素链
H-matrix
diagonally dominant matrix
generalized diagonally dominant matrix
irreducible matrix
nonzero element chain
