Tunc, Cemil2025-05-102025-05-1020132314-498X2314-499810.1155/2013/973917https://doi.org/10.1155/2013/973917https://hdl.handle.net/20.500.14720/1408Tunc, Cemil/0000-0003-2909-8753This paper studies the instability of the zero solution for a certain nonlinear functional vector differential equation of the seventh order with multiple deviating arguments. Under sufficient conditions, we prove a result on the instability of the zero solution.. is work contributes and complements to previously known results in the literature.eninfo:eu-repo/semantics/openAccessArticleN/AN/AWOS:000215263200051