摘要
应用完全非负矩阵的 Hadamard中心的性质 ,给出了非奇异三对角完全非负矩阵的Hadamard乘积的行列式的下界估计满足 Schur- Oppenheim严格不等式的充分条件 ,改进了 T.L .Markham的关于三对角的振荡矩阵的相应结果 .
Applying properties of Hadamard core for totally nonnegative matrices, we give a sufficient condition that the lower bound estimation of the determinent of Hadamard product of two nonsigular tridiagonal totally nonnegative matries satisfy Schur-Oppenheim strict inequality, and improve the corresponding results on tridiagonal oscillating matrices obtained by T.L.Markham.
出处
《数学研究》
CSCD
2004年第2期193-199,共7页
Journal of Mathematical Study