华东师范大学学报(自然科学版) ›› 2018, Vol. 2018 ›› Issue (4): 32-46,58.doi: 10.3969/j.issn.1000-5641.2018.04.004

• 数学 • 上一篇    下一篇

线性矩阵方程的斜,Hermit{P,k+1},Hamilton解

雍进军1,2, 陈果良2, 徐伟孺2   

  1. 1. 贵州师范学院 数学与计算机科学学院, 贵阳 550018;
    2. 华东师范大学 数学科学学院, 上海 200241
  • 收稿日期:2017-07-19 出版日期:2018-07-25 发布日期:2018-07-19
  • 通讯作者: 陈果良,男,教授,博士生导师,研究方向为数值代数.E-mail:glchen@math.ecnu.edu.cn E-mail:glchen@math.ecnu.edu.cn
  • 作者简介:雍进军,男,副教授,研究方向为计算数学.E-mail:yongjinjun@126.com.
  • 基金资助:
    国家自然科学基金,(11471122);2016,年度贵州省科技平台及人才团队专项基金项目,(黔科合平台人才【2016】5609);贵州师范学院校级课题,(2015BS009)

The skew-Hermitian {P,k+1} Hamiltonian solutions of a linear matrix equation

YONG Jin-jun1,2, CHEN Guo-liang2, XU Wei-ru2   

  1. 1. Department of Mathematics and Computer Science, Guizhou Education University, Guiyang 550018, China;
    2. School of Mathematical Sciemces, East China Normal University, Shanghai 200241, China
  • Received:2017-07-19 Online:2018-07-25 Published:2018-07-19

摘要: 给定矩阵,PCn×nP*=-P=Pk+1.考虑了矩阵方程,AX=B存在斜Hermite{Pk+1}(斜)Hamilton解的充要条件,并给出了解的表达式.进一步,对于任意给定的矩阵ÃCn×n,给出了使得Frobenius范数||Ã-ā||取得最小值的最佳逼近解āCn×n.当矩阵方程,AX=B,不相容时,给出了斜,Hermite{Pk+1}(斜)Hamilton最小二乘解,在此条件下,给出了对于任意给定矩阵的最佳逼近解.最后给出一些数值实例.

关键词: 斜Hermite矩阵, Hamilton矩阵, 最小二乘解, 斜Hermite{P,k+1}Hamilton矩阵

Abstract: Given PCn×n and P*=-P=P k+1, we consider the necessary and sufficient conditions such that the matrix equation AX=B is consistent with the skew-Hermitian {P, k + 1} (skew-) Hamiltonian structural constraint. Then, the corresponding expressions of the constraint solutions are also obtained. For any given matrix à ∈ Cn×n, we present the optimal approximate solution ā ∈ Cn×n such that ||Ã-ā|| is minimized in the Frobenius norm sense. If the matrix equation AX=B is not consistent, its least-squares skew-Hermitian {P, k + 1} (skew-) Hamiltonian solutions are given. Under the least-square sense, we consider the best approximate solutions to any given matrix. Finally, some illustrative experiments are also presented.

Key words: skew-Hermitian matrix, Hamiltonian matrix, least-squares solution, skew-Hermitian{P,k+1}Hamiltonian matrix

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