Tunç, C.2025-05-102025-05-1020132314-462910.1155/2013/8097482-s2.0-85014259404https://doi.org/10.1155/2013/809748https://hdl.handle.net/20.500.14720/4821We study a fifth-order nonlinear vector delay differential equation with multiple deviating arguments. Some criteria for guaranteeing the instability of zero solution of the equation are given by using the Lyapunov-Krasovskii functional approach. Comparing with the previous literature, our result is new and complements some known results. © 2013 Cemil Tunç.eninfo:eu-repo/semantics/openAccessArticle2013Q1Q1