International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Full Length Research Paper

The partial eigenvalue assignment for non-symmetric quadratic pencil in multi-input case

Ehab A. El-Sayed
Department of Mathematics, College of Science and Humanitarian Studies, Salman Bin Abdulaziz University, Saudi Arabia. Department of Science and Mathematics, Faculty of Petroleum Engineering, Suez University, Egypt.
Email: [email protected]

  •  Accepted: 27 March 2012
  •  Published: 30 April 2012

Abstract

 

In this paper, we propose a parametric solution to the partial eigenvalue assignment problem by state feedback control for non-symmetric quadratic pencil in multi-input case using orthogonality relations between eigenvectors. Our solution can be implemented with only a partial knowledge of the spectrum and the corresponding eigenvectors of non-symmetric quadratic pencil. We show that the number of eigenvalues and eigenvectors that need to remain unchanged will not be affected by feedback matrices. A numerical example is given to illustrate the proposed method.

 

Key-words: Non-symmetric quadratic pencil, eigenvectors, eigenvalues.