Tunc, Cemil2025-05-102025-05-1020041072-66912-s2.0-5344221025https://hdl.handle.net/20.500.14720/4650In this paper, we give an instability criteria for the nonlinear sixth-order vector differential equation [GRAPHICS] The result extends and includes earlier results [6, 16, 20].eninfo:eu-repo/semantics/closedAccessNonlinear Differential Equations Of Sixth OrderInstabilityLyapunov FunctionArticleQ3Q3WOS:000208969900117