数学物理学报 ›› 2012, Vol. 32 ›› Issue (2): 356-363.

• 论文 • 上一篇    下一篇

由谱数据和主子矩阵构造Jacobi矩阵及其推广

魏莹, 戴华   

  1. 南京航空航天大学理学院 南京 |210016
  • 收稿日期:2008-10-27 修回日期:2011-09-15 出版日期:2012-04-25 发布日期:2012-04-25
  • 基金资助:

    国家自然科学基金(11071118)资助

Construction of Jacobi Matrix from its Submatrix and Spectrum and |its Expansion

 WEI Ying, DAI Hua   

  1. College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
  • Received:2008-10-27 Revised:2011-09-15 Online:2012-04-25 Published:2012-04-25
  • Supported by:

    国家自然科学基金(11071118)资助

摘要:

研究由主子矩阵和谱数据构造Jacobi矩阵问题, 推广到弹簧质点系统谱约束下的双倍维扩展问题和对称三对角二次束逆特征值问题.给出了问题的数值解法.

关键词: 反问题, Jacobi矩阵, 二次特征值, 弹簧质点系统, 主子矩阵

Abstract:

This paper considers the following problem: how to construct a Jacobi matrix from its spectrum and a submatrix. The numerical algorithms are given. Then we expand the result to the method of expanding a spring mass system to double dimension and the inverse  problem of constructing  a tridiagonal quadratic pencil.

Key words: Inverse problem, Jacobi matrix, Quadratic pencil, Spring mass system, Submatrix

中图分类号: 

  • 15A54