Abstract
We first give a sufficient condition for positivity of the solution semigroup of linear functional difference equations. Then, we obtain a Perron–Frobenius theorem for positive linear functional difference equations. Next, we offer a new explicit criterion for exponential stability of a wide class of positive equations. Finally, we study stability radii of positive linear functional difference equations. It is proved that complex, real and positive stability radius of positive equations under structured perturbations (or affine perturbations) coincide and can be computed by explicit formulae.
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Pham Huu Anh Ngoc and Toshiki Naito are supported by the Japan Society for Promotion of Science (JSPS) ID No. P 05049.
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Ngoc, P.H.A., Naito, T. & Shin, J.S. On stability of a class of positive linear functional difference equations. Math. Control Signals Syst. 19, 361–382 (2007). https://doi.org/10.1007/s00498-007-0018-4
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DOI: https://doi.org/10.1007/s00498-007-0018-4