Perturbation estimates for the nonlinear matrix equation X-A * X q A=Q (0<q<1)

被引:2
作者
Jia G. [1 ]
Gao D. [1 ]
机构
[1] Department of Mathematics, Heze University, Heze 274015, Shandong
关键词
Nonlinear matrix equation; Perturbation estimates; Positive definite solution;
D O I
10.1007/s12190-009-0357-z
中图分类号
学科分类号
摘要
The nonlinear matrix equation X-A * X q A=Q with 0<q<1 is investigated. Two perturbation estimates for the unique positive definite solution of the equation are derived. The theoretical results are illustrated by numerical examples. © 2009 Korean Society for Computational and Applied Mathematics.
引用
收藏
页码:295 / 304
页数:9
相关论文
共 6 条
  • [1] Ferrante A., Levy B.C., Hermitian solution of the equation X=Q+NX <sup>-1</sup> N <sup>*</sup>, Linear Algebra Appl., 247, pp. 359-373, (1996)
  • [2] Zhang Y.H., On Hermitian positive definite solutions of matrix equation X+A <sup>*</sup> X <sup>-2</sup> A=I, Linear Algebra Appl., 372, pp. 295-304, (2003)
  • [3] Hasanov V., Ivanov I., Solutions and perturbation estimates for of the matrix equation X±A <sup>*</sup> X <sup>-n</sup> A=Q, Appl. Math. Comput., 156, pp. 513-525, (2004)
  • [4] Zhang Y.H., Wang J.F., Zhu B.R., The Hermitian positive definite solutions of matrix equation X+A <sup>*</sup> X <sup>-q</sup> A=I, J. Numer. Math. Appl., 26, pp. 14-27, (2004)
  • [5] Gao D.J., Zhang Y.H., Hermitian positive definite solutions of matrix equation X-A <sup>*</sup> X <sup>q</sup> A=Q (q>0), J. Numer. Math. Appl., 29, pp. 73-80, (2007)
  • [6] Gao D.J., Zhang Y.H., Perturbation analysis of the Hermitian positive definite solutions of matrix equation X-A <sup>*</sup> X <sup>q</sup> A=I (0<q<1), J. Numer. Math. Appl., 29, pp. 403-412, (2007)