ABSTRACT
In this paper, the stability of an equilibrium of a feedback nonlinear system with time delay and structural switching is studied. The critical case of a zero root of the characteristic equations of the linearised systems is treated by applying a Malkin-type theorem using a complete Lyapunov–Krasovskii functional.
Acknowledgements
The authors gratefully acknowledge the financial support of the National Authority for Scientific Research - ANCS, UEFISCDI, through CONTUR research project PN-III-P1-1.2-PCCDI2017-0868, 87PCCDI/2018. The authors are grateful to the referees for their recommendations.
Disclosure statement
No potential conflict of interest was reported by the author(s).