scholarly journals Erratum to: “New oscillation criteria for second-order nonlinear neutral delay differential equations” [J. Comput. Appl. Math. 231 (2009) 657–663]

2010 ◽  
Vol 233 (10) ◽  
pp. 2755 ◽  
Author(s):  
Lihua Liu ◽  
Yuzhen Bai
Keyword(s):  
Differential Equations ◽  
Delay Differential Equations ◽  
Second Order ◽  
Neutral Delay ◽  
Oscillation Criteria ◽  
Neutral Delay Differential Equations ◽  
Delay Differential ◽  
Appl Math

scholarly journals New Oscillation Criteria for Second-Order Neutral Delay Differential Equations with Positive and Negative Coefficients

2010 ◽  
Vol 2010 ◽  
pp. 1-11
Author(s):  
Yuzhen Bai ◽  
Lihua Liu
Keyword(s):  
Differential Equations ◽  
Delay Differential Equations ◽  
Second Order ◽  
Neutral Delay ◽  
Oscillation Criteria ◽  
Positive And Negative Coefficients ◽  
Neutral Delay Differential Equations ◽  
Delay Differential

We establish the oscillation and asymptotic criteria for the second-order neutral delay differential equations with positive and negative coefficients having the forms[x(t)+∑i∈Rci(t)x(αi(t))]′′+r(t)[x(t)+∑i∈Rci(t)x(αi(t))]′+∑i∈Ppi(t)x(βi(t))-∑i∈Qqi(t)x(γi(t))=0and[x(t)+∑i∈Rci(t)x(αi(t))]′′+r(t)[x(t)+∑i∈Rci(t)x(αi(t))]′+∑i∈Ppi(t)x(βi(t))-∑i∈Qqi(t)x(γi(t))=f(t). The obtained new oscillation criteria extend and improve the recent results given in the paperof B. Karpuz et al. (2009).

scholarly journals Oscillation Criteria for Second-Order Nonlinear Neutral Delay Differential Equations

2010 ◽  
Vol 2010 ◽  
pp. 1-24 ◽  
Author(s):  
Zhenlai Han ◽  
Tongxing Li ◽  
Shurong Sun ◽  
Weisong Chen
Keyword(s):  
Differential Equations ◽  
Delay Differential Equations ◽  
Second Order ◽  
Neutral Delay ◽  
Oscillation Criteria ◽  
Neutral Delay Differential Equations ◽  
Delay Differential

On the Oscillation of second order nonlinear neutral delay differential equations

2021 ◽  
Vol 71 (4) ◽  
pp. 859-870
Author(s):  
R. A. Sallam ◽  
M. M. A. El-Sheikh ◽  
E. I. El-Saedy
Keyword(s):  
Differential Equations ◽  
Delay Differential Equations ◽  
Second Order ◽  
Neutral Delay ◽  
Oscillation Criteria ◽  
Neutral Delay Differential Equations ◽  
Delay Differential

Abstract A class of second-order neutral delay differential equations is considered. New oscillation criteria are established to complement and improve some known results in the literature. Two examples are given to support our results.

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