Abstract
In this chapter, the analysis of the behavior of multiple critical roots with respect to the delay parameters for a class of quasi-polynomials is addressed. The analysis is based on the construction of the so-called Weierstrass polynomial. Several numerical examples encountered in the control literature are considered to illustrate the proposed approach.
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Acknowledgements
The research of J. Chen was supported in part by the Hong Kong RGC under Projects F-HK006/11T and CityU 11260016; the work of A. Martínez-González was financially supported by CONACyT, Mexico.
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Martínez-González, A., Niculescu, SI., Chen, J., Méndez-Barrios, C.F., Romero, J.G., Mejía-Rodríguez, G. (2019). Asymptotic Analysis of Multiple Characteristics Roots for Quasi-polynomials of Retarded-Type. In: Valmorbida, G., Seuret, A., Boussaada, I., Sipahi, R. (eds) Delays and Interconnections: Methodology, Algorithms and Applications. Advances in Delays and Dynamics, vol 10. Springer, Cham. https://doi.org/10.1007/978-3-030-11554-8_9
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