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Interval Criteria for Oscillation of Forced Second-order Half-linear Differential Equations 被引量:1
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作者 申春雪 张洪奎 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2005年第4期411-417,共7页
By employing a generalized Riccati technique and an integral averaging tech-nique, new interval oscillation criteria are established for the forced second-order half-lineardifferential equation [r(t)|x′ (t)|α-1x′ (... By employing a generalized Riccati technique and an integral averaging tech-nique, new interval oscillation criteria are established for the forced second-order half-lineardifferential equation [r(t)|x′ (t)|α-1x′ (t)]′ + q(t)|x(t)|α-1x(t) = e(t). 展开更多
关键词 Half-linear differential equations OSCILLATION interval criteria generalized riccati technique
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New Interval Oscillation Criteria for Forced Second-order Half-linear Differential Equations
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作者 WANG Xi-ping CHEN Qiong XU Ji-jun 《Chinese Quarterly Journal of Mathematics》 CSCD 2009年第2期223-226,共4页
This paper discusses a class of forced second-order half-linear differential equations. By using the generalized Riccati technique and the averaging technique, some new interval oscillation criteria are obtained.
关键词 second-order half-linear differential equations OSCILLATION interval criteria forc-ing term generalized riccati technique
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Oscillation Theorems for Second-Order Nonlinear Neutral Delay Dynamic Equations on Time Scales 被引量:1
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作者 Samir H.SAKER Donal O’REGAN Ravi P.AGARWAL 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2008年第9期5-1432,1410,共24页
By employing the generalized Riccati transformation technique,we will establish some new oscillation criteria and study the asymptotic behavior of the nonoscillatory solutions of the second-order nonlinear neutral del... By employing the generalized Riccati transformation technique,we will establish some new oscillation criteria and study the asymptotic behavior of the nonoscillatory solutions of the second-order nonlinear neutral delay dynamic equation [r(t)[y(t)+p(t)y(■(t))]~Δ]~Δ+q(t)f(y((δ(t)))=0 on a time scale■.The results improve some oscillation results for neutral delay dynamic equations and in the special case when■our results cover and improve the oscillation results for second- order neutral delay differential equations established by Li and Liu[Canad.J.Math.,48(1996), 871 886].When■,our results cover and improve the oscillation results for second order neutral delay difference equations established by Li and Yeh[Comp.Math.Appl.,36(1998),123-132].When ■ ■our results are essentially new.Some examples illustrating our main results are given. 展开更多
关键词 OSCILLATION neutral delay dynamic equation generalized riccati technique time scales
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Oscillation Criteria of Second Order Half Linear Delay Dynamic Equations on Time Scales
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作者 H.A. AGWO A.M.M. KHODIER HEBA A. HASSAN 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2017年第1期83-92,共10页
In this paper, we establish some new oscillation criteria for a non autonomous second order delay dynamic equation (r(t)g(x△(t)))△+p(t)f(x(τ(t)))=0 on a time scale T. Oscillation behavior of this e... In this paper, we establish some new oscillation criteria for a non autonomous second order delay dynamic equation (r(t)g(x△(t)))△+p(t)f(x(τ(t)))=0 on a time scale T. Oscillation behavior of this equation is not studied before. Our results not only apply on differential equations when T=R, difference equations when T=N but can be applied on different types of time scales such as when T=N for q〉1 and also improve most previous results. Finally, we give some examples to illustrate our main results. 展开更多
关键词 time scales OSCILLATION second order delay dynamic equations generalized riccati technique generalized exponential function
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