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Volume 6, Number 2, 2016, Pages 336-349                                                                DOI:10.11948/2016026
On some qualitative behaviors of certain differential equations of fourth order with multiple retardations
Erdal Korkmaz,Cemil Tunc
Keywords:Boundedness, stability, Lyapunov functional
Abstract:
      In this paper, we give sufficient conditions to guarantee the asymptotic stability and boundedness of solutions to a kind of fourth-order functional differential equations with multiple retardations. By using the Lyapunov-Krasovskii functional approach, we establish two new results on the stability and boundedness of solutions, which include and improve some related results in the literature
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