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Surveys in Mathematics and its Applications

ISSN 1842-6298
 Volume 2 (2007), 29 - 41

PERTURBATION ANALYSIS FOR THE COMPLEX MATRIX EQUATION Q ± AHXpA - X = 0

Juliana K. Boneva, Mihail M. Konstantinov and Petko H. Petkov

Abstract. We study the sensitivity of the solution of a general type matrix equation Q ± AHXpA - X = 0. Local and nonlocal perturbation bounds are derived. The results are obtained using the technique of Lyapunov majorants and fixed point principles. A numerical example is given.

2000 Mathematics Subject Classification: 15A24.
Keywords: perturbation bounds, sensitivity analysis, nonlinear matrix equations.

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Juliana K. Boneva Mihail M. Konstantinov
University of Architecture, Civil Engineering and Geodesy, University of Architecture, Civil Engineering and Geodesy,
1 Hr. Smirnenski 1 Blvd., 1046 Sofia, 1 Hr. Smirnenski 1 Blvd., 1046 Sofia,
Bulgaria. Bulgaria.
e-mail: boneva_fte@uacg.bg e-mail: mmk_fte@uacg.bg


Petko H. Petkov
Technical University of Sofia,
1756 Sofia,
Bulgaria.
e-mail: php@tu-sofia.bg

http://www.utgjiu.ro/math/sma