Tunç, C.Erdogan, F.2025-05-102025-05-1020070916-57462-s2.0-79960815478https://hdl.handle.net/20.500.14720/18107By using Lyapunov's function approach [13], some new results were established, which guarantee that the zero solution of non-linear vector differential equations of the form is unstable.eninfo:eu-repo/semantics/closedAccessInstabilityLyapunov'S Second (Or Direct) MethodNonlinear Differential Equations Of Fifth OrderOn the Instability of Solutions of Certain Non-Autonomous Vector Differential Equations of Fifth OrderArticle431N/AQ43548