J. Korean Math. Soc. 1999; 36(4): 757-771
Printed July 1, 1999
Copyright © The Korean Mathematical Society.
Younhee Ko
We consider a system of functional differential equations $x'(t)=F(t,x_t)$ and obtain conditions on a Liapunov functional and a Liapunov function to ensure the instability of the zero solution.
Keywords: instability, functional differential equations (FDEs)
MSC numbers: 34K20
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