On the Instability of Nonlinear Functional Differential Equations of Fifth Order

Tunc, Cemil2025-05-102025-05-1020170120-03802357-6529https://hdl.handle.net/20.500.14720/17431The author gives sufficient conditions for non-existence of periodic solutions of two higher order nonlinear delay differential systems. Our technical approach is based on the construction of two suitable Lyapunov type functionals. An example is given to illustrate the obtained results. The main results here improve recent results found on the topic in the literature from the case of without delay to the delay case.eninfo:eu-repo/semantics/closedAccessNon-Existence Of Periodic SolutionsLyapunov FunctionalNon-LinearDifferential EquationDelayFifth OrderOn the Instability of Nonlinear Functional Differential Equations of Fifth OrderArticle242N/AN/A155168WOS:000426973500004