New oscillation criteria for nonlinear delay differential equations of fourth-order

2020 ◽  
Vol 377 ◽  
pp. 125192 ◽  
Author(s):  
Osama Moaaz ◽  
Ali Muhib
2009 ◽  
Vol 2009 ◽  
pp. 1-7 ◽  
Author(s):  
Chengmin Hou ◽  
Sui Sun Cheng

All solutions of a fourth-order nonlinear delay differential equation are shown to converge to zero or to oscillate. Novel Riccati type techniques involving third-order linear differential equations are employed. Implications in the deflection of elastic horizontal beams are also indicated.


Sign in / Sign up

Export Citation Format

Share Document