Tunc, Cemil2025-05-102025-05-1020121687-96431687-965110.1155/2012/4068352-s2.0-84878733528https://doi.org/10.1155/2012/406835https://hdl.handle.net/20.500.14720/1344Tunc, Cemil/0000-0003-2909-8753We establish certain new sufficient conditions which guarantee the existence of periodic solutions for a nonlinear differential equation of the third order with multiple deviating arguments. Using the Lyapunov functional approach, we prove a specific theorem and provide an example to illustrate the theoretical analysis in this work and the effectiveness of the method utilized here.eninfo:eu-repo/semantics/openAccessArticle