Bulletin of the Korean Mathematical Society (대한수학회보)

Korean Mathematical Society (대한수학회)
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ON THE REFLEXIVE SOLUTIONS OF THE MATRIX EQUATION AXB + CYD = E

  • Dehghan, Mehdi (DEPARTMENT OF APPLIED MATHEMATICS FACULTY OF MATHEMATICS AND COMPUTER SCIENCE AMIRKABIR UNIVERSITY OF TECHNOLOGY) ;
  • Hajarian, Masoud (DEPARTMENT OF APPLIED MATHEMATICS FACULTY OF MATHEMATICS AND COMPUTER SCIENCE AMIRKABIR UNIVERSITY OF TECHNOLOGY)
  • Published : 2009.05.31
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Abstract

A matrix $P{\in}\mathbb{C}^{n{\times}n}$ is called a generalized reflection matrix if $P^*$ = P and $P^2$ = I. An $n{\times}n$ complex matrix A is said to be a reflexive (anti-reflexive) matrix with respect to the generalized reflection matrix P if A = PAP (A = -PAP). It is well-known that the reflexive and anti-reflexive matrices with respect to the generalized reflection matrix P have many special properties and widely used in engineering and scientific computations. In this paper, we give new necessary and sufficient conditions for the existence of the reflexive (anti-reflexive) solutions to the linear matrix equation AXB + CY D = E and derive representation of the general reflexive (anti-reflexive) solutions to this matrix equation. By using the obtained results, we investigate the reflexive (anti-reflexive) solutions of some special cases of this matrix equation.

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References

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