Acta mathematica scientia,Series A ›› 2009, Vol. 29 ›› Issue (2): 316-323.

• Articles • Previous Articles     Next Articles

Optimal Approximation Problem of Antireflexive Matrices under the Spectral Restriction

 GUAN Li, ZHANG Zhong-Zhi, XIE Dong-Xiu   

  1. (Department of Mathematics, Dongguan University of Technology, Guangdong Donguan 523808)|(School of Sciences, Beijing Information Science and Technology University, Beijing 100192)
  • Received:2007-12-25 Revised:2009-01-07 Online:2009-04-25 Published:2009-04-25
  • Supported by:

    国家自然科学基金(10571012)和北京自然科学基金(1062005)资助

Abstract:

In this paper, the inverse eigenvalue problem of antireflexive matrices and relevant optimal approximation
problem are considered. Some necessary and sufficient conditions of the solvability for the inverse eigenvalue problem are given. A general representation of the solution is presented for solvable case. Furthermore, for any given complex matrix of dimension n, an expression of solution for its optimal approximation is presented.

Key words: Antireflexive , matrix, Inverse eigenvalue problem, Optimal approximation, Matrix norm

CLC Number: 

  • 15A57
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