Comment on "Exponential stabilization of chaotic systems with delay by periodically intermittent control" [Chaos 17, 013103 (2007)].
In the referenced paper, there is a technical carelessness in the second lemma, and it is highlighted here to avoid possible failure when the result is used to design the intermittent controller for nonlinear systems.
Deng
Shaojiang
S
College of Computer Science, Chongqing University, 400030, China.
Xiao
Di
D
D000465:Algorithms; D001683:Biological Clocks / Q000502:physiology*; D003198:Computer Simulation; D005246:Feedback / Q000502:physiology*; D008954:Models, Biological; D017711:Nonlinear Dynamics