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Proyecciones (Antofagasta)

Print version ISSN 0716-0917

Proyecciones (Antofagasta) vol.35 no.3 Antofagasta Sept. 2016 


Stability and boundedness in differential systems of third order with variable delay


Cemil Tunc

Yuzuncu University, Turkey 


In this paper, we consider a non-linear system of differential equations ofthird order with variable delay. We discuss the globally asymptotic stability/uniformly stability, boundedness and uniformly boundedness ofsolutionsfor the considered system. The technique ofproofs involves defining an appropriate Lyapunov functional. The obtained results include and improve the results in literature.

Keywords : Globally asymptotic stability, boundedness, Lyapunov functional, delay, differential system, third order.

2010 Mathematics Subject Classifications : 34K12, 34K20.


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Received : April 2016. Accepted : June 2016


Cemil Tunc
Department of Mathematics
Faculty of Science
Yuzuncu Yil University
65080, Van-Turkey

e-mail :

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