Tunc, CemilTunc, Ercan2021-07-202021-07-202006-09-11Tunç, C., & Tunç, E. (2006). Instability results for certain third order nonlinear vector differential equations. <i>Electronic Journal of Differential Equations, 2006</i>(109), pp. 1-10.1072-6691https://hdl.handle.net/10877/13982Our goal in this paper is to obtain sufficient conditions for instability of the zero solution to the non-linear vector differential equation X˙˙˙ + F(X, Ẋ) Ẍ + G(Ẋ) + H(X) = 0. An example illustrates the results obtained.Text10 pages1 file (.pdf)enAttribution 4.0 InternationalInstabilityLyapunov's second (or direct) methodNonlinear differential equations of third orderArticleThis work is licensed under a Creative Commons Attribution 4.0 International License.