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T关于M矩阵的Fan乘积的Oppenheim型不等式(英文)
The Oppenheim type inequality on Fan product of M-matrices
【摘要】 首先指出张胜关于M-矩阵Fan乘积的行列式下界的估计不比两个M矩阵的Fan乘积的Oppenheim型不等式的结果好,然后进一步推广了两个M矩阵的Fan乘积的Oppenheim型不等式,并且说明推广的结果优于已知的张胜的结论.
【Abstract】 Firstly, it is pointed out that the estimation on the lower bound of the determinant for Fan product of M- matrices in Zhang Sheng [Journal of Nanjing Normal University, 22(2)(1999), 19-23] is not better than the Oppenheim type inequality on Fan product of M-matrices. Secondly, the Oppenheim-type inequalities on Fan product of two M-matrices are generalized. Finally, it is indicated that our results are superior to the results of Zhang Sheng.
【关键词】 Fan乘积;
Oppenheim型不等式;
M-矩阵;
行列式;
下界;
【Key words】 Fan product; Oppenheim-type inequality; M-matrix; determinant; lower bound;
【Key words】 Fan product; Oppenheim-type inequality; M-matrix; determinant; lower bound;
【基金】 Supported by the Science Foundation of Fujian Educational Department (JA03159); the Science ResearchFoundation of Putian University(2004Q003; 2004Q002)
- 【文献出处】 黑龙江大学自然科学学报 ,Journal of Natural Science of Heilongjiang University , 编辑部邮箱 ,2004年04期
- 【分类号】O151.21
- 【下载频次】43