Tunc, Cemil2025-05-102025-05-1020132337-576010.5614/j.math.fund.sci.2013.45.2.52-s2.0-84888425867https://doi.org/10.5614/j.math.fund.sci.2013.45.2.5https://hdl.handle.net/20.500.14720/1410Tunc, Cemil/0000-0003-2909-8753We give certain sufficient conditions for the existence of periodic solutions to a Rayleigh-type equation with state-dependent delay. With this work we extend and improve some known results in the literature.eninfo:eu-repo/semantics/openAccessNon-LinearPeriodic SolutionRayleigh EquationSecond OrderState-Dependent DelayArticle