2025-08-12https://repository.covenantuniversity.edu.ng/handle/123456789/49893We investigate sufficient conditions (theorem 1) for the non-existence or periodic solutions of equation (2. 1) with P=0 and sufficient conditions (theorem 2) for existence of periodic solutions of equation ( 1.1.1 ).application/pdfQA MathematicsPeriodic Solutions of a Class of Even Order Differential EquationsArticle