节点文献
对称Z-矩阵的惯量以及其Schur补的若干交错性质
ON INERTIA AND SOME INTERLACING PROPERTIES FOR SCHUR COMPLEMENT OF A SYMMETRIC Z-MATRIX
【Abstract】 In this paper, the inertia of a symmetric Z-matrix is studied, and bounds of the number of its positive eigenvaues are obtained. Also the interlacing theorem for Schur complement of a symmetric Z-matrix is established, which can be considered as a generalization Cauchy interlacing theorem in some extent.
【关键词】 Z-矩阵;
惯量;
Cauchy交错定理;
Schur补;
【Key words】 Z-matrix; inertia; Cauchy interlacing theorem; Schur complement;
【Key words】 Z-matrix; inertia; Cauchy interlacing theorem; Schur complement;
【基金】 国家自然科学基金资助项目(19971086).
- 【文献出处】 计算数学 ,Mathematica Numerica Sinica , 编辑部邮箱 ,2002年02期
- 【分类号】O151.21
- 【被引频次】1
- 【下载频次】47