Oscillation and Asymptotic Properties of Differential Equations of Third-Order

• Published in: Axioms Vol. 10; no. 3; p. 192
• Main Authors: Elayaraja, R., Ganesan, V., Bazighifan, Omar, Cesarano, Clemente
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.09.2021
• Subjects: Asymptotic properties; Differential equations; distributed deviating arguments; Funding; Inequality; Mathematical analysis; neutral differential equation; oscillation; Riccati transformation; third-order
• ISSN: 2075-1680; 2075-1680
• DOI: 10.3390/axioms10030192

The main purpose of this study is aimed at developing new criteria of the iterative nature to test the asymptotic and oscillation of nonlinear neutral delay differential equations of third order with noncanonical operator (a(ι)[(b(ι)x(ι)+p(ι)x(ι−τ)′)′]β)′+∫cdq(ι,μ)xβ(σ(ι,μ))dμ=0, where ι≥ι0 and w(ι):=x(ι)+p(ι)x(ι−τ). New oscillation results are established by using the generalized Riccati technique under the assumption of ∫ι0ιa−1/β(s)ds<∫ι0ι1b(s)ds=∞asι→∞. Our new results complement the related contributions to the subject. An example is given to prove the significance of new theorem.