北华大学学报(自然科学版)2017,Vol.18Issue(1):13-18,6.DOI:10.11713/j.issn.1009-4822.2017.01.003
秩与非零特征值个数的差为n-2的矩阵
Matrices with the Differences between Ranks and Numbers of Non-Zero Eigenvalues Being n-2
摘要
Abstract
This paper gives out some equivalent characterization for the matrices with the difference between ranks and numbers of non-zero eigenvalues being n-2. Further,for this kind of matrices A and B,it presents that A and B are similar if and only if their traces trA=trB≠0,or their least polynomials mA(x)=mB(x) when trA=trB=0.关键词
矩阵秩/矩阵指数/特征值/迹/最小多项式Key words
matrix rank/matrix index/eigenvalue/trace/least polynomial分类
数理科学引用本文复制引用
晏瑜敏,陈梅香,冯晓霞,杨忠鹏..秩与非零特征值个数的差为n-2的矩阵[J].北华大学学报(自然科学版),2017,18(1):13-18,6.基金项目
福建省高校杰出青年科研培育人才项目(2016) (2016)
福建省本科高校教育教学改革研究项目(2015JAS151327) (2015JAS151327)
莆田学院育苗基金项目(2016110) (2016110)
莆田学院教改项目(JG201630) (JG201630)